Android calendar mobile application jobs

I'm in need of...The primary purpose of the AR experience is to educate users. Key Requirements: - Development for both iOS and Android platforms - A especific 3D airship model with a moderate level of detail and textures called PAX from the Brazilian Aviator Augusto Severo - The user should be able to see the airship fly through a room from different angles - Educational elements should be incorporated to enhance user's learning experience Ideal Skills and Experience: - Proficiency in developing AR experiences - Strong 3D modeling skills with experience in creating detailed textures - Ability to create engaging and interactive educational content - Prior experience in developing iOS and Android applications - Strong communication skills to understand and impleme...

...of the requirements are included in the application ;) Subject: Application for booking parking spaces. Design (in Android Studio) an adequate user interface (visual layer, navigation, i.e. transitions between screens, animations) The application should contain (at least): - Welcome Screen - Login Screen - Two-factor authentication screen - Error messages - Notifications (displayed in the top bar) - Browsing screen (discs, files or similar), also known as the gallery (the gallery can be freely adapted to the theme of the application) - Adding a new item to the gallery screen (non-functional) - Focus Screen (e.g. presenting a new application feature) - Personalization/change settings screen - Characteristic Screen (e.g. if we are creating an ...

Mobile APP development for a property listing , buying and selling business. Basically the user should be able to list the property , upload the property images and video. The transactions involve the following 1. Property Listing for sale or rental , 2 Post images and videos of property , 3 Admin approves the listing , 4 Location based search, 5 property type based search, rental or sales based search , Price range search and type based search. User should be able to list the property for sales or rental. 6. Shortlisting of property. Wish list or keep an eye on property.... User notification and any new listing.

The main goal of this project is to find relevant influencers using our Shopify Collabs. Influencers which you will contact, they need to call their followers to install our new android Dance APP. In our APP influencer need to create one new video, and call their followers to dance with them inside our app until the song is finished. App is a new type of "collab dance app" where each user record dance on one small segment of any song (2-4sec) creating a new cool unpredictable music video. You need to try and test our app as well to understand it a bit. Key Responsibilities: 1. Check our Shopify Collabs Account and optimize it using our website, pictures, videos, reels, etc. You can create some pictures, reels as well. 2. Find Influencers using our Shopify Account or ma...

...for a seasoned developer well-versed in creating a comprehensive online tutoring and course website with an accompanying mobile application. Key Features: - User Registration and Login: The website and application should allow users to register and login seamlessly. - Course Management: The platform needs to accommodate academic courses, professional development courses, and language courses. - Online Payment Integration: The website and app should have a secure and hassle-free online payment system integrated for course enrollments. Mobile App Specific Features: - Course Enrollment: Users should be able to browse and enroll in courses directly from the mobile application. - Live Video Streaming: The app should support live video streaming...

I need some easy work in Android I need some android apps using java I need easy work at low budget but for long term I need work from Pakistan freelancer

I hope this message finds you well. I am reaching out to kindly request your assistance with the publication of my app on play console . Your expertise and established presence in the industry make you the perfect ally in this endeavor. I have poured my heart and soul into developing this app, and I believe it has the potential to resonate with a wide audience. However, navigating the intricacies of app publication can be daunting, and your support would be invaluable in helping me navigate this process smoothly. Your generosity in considering my request would mean the world to me, and I am more than willing to discuss any terms or arrangements that would make this collaboration mutually beneficial. Together, I am confident we can bring this project to fruition and share its impact with ...

I'm in urgent need of a diligent and experienced remote assistant who can help me streamline my daily tasks. Your main responsibilities will include data entry, email management, and calendar management. Key tasks include: - Conducting data entry: You'll be required to manage and organize data effectively. - Email management: Checking, sorting, and responding to my emails will be one of your daily tasks. - Calendar management: Organizing and scheduling appointments, meetings, and events will be part of your duty. As this is a daily role, you must be available and committed to this schedule. Moreover, I prefer email as the significant mode of communication. Prior experience in a similar role utilizing the mentioned skills would be advantageous. Your attention to d...

I require an experienced web designer to build a music app themed mobile website. This project involves designing and developing a music streaming feature with specific characteristics: - User Login through Google OTP - An exciting interface that categorizes and displays various music genres and choices. - Implementation of banners for promotional purposes. - Multi-language support to cater to an international audience. - 04 Categories Tab Ideal candidates should possess high proficiency in responsive mobile web design, UX/UI design, and should have experience dealing with music streaming platforms. Your portfolio showcasing similar projects will be highly regarded.

I need an experienced VR developer, immediately available, to help me create a VR game for Android and Google Cardboard. The project essentials: - Developing an engaging VR gaming experience - Optimization for Android and Google Cardboard VR platforms Ideal skills & experience: - Proven record in VR game development - Proficient in Android development - Experience with Google Cardboard is a plus This is an urgent project, so I need someone who can start as soon as possible. Your previous VR gaming portfolio will be key in my selection process. Quick turnaround time is essential. the project is about virtual reality snake phobia. i already created aquarium and snake. but the snake cannot travel inside the aquarium

I'm looking for an experienced Android developer to create an app that will facilitate e-commerce sales. Here are some key details about the project: - I'm primarily looking for a developer with a strong portfolio of past work. I want to see examples of successful e-commerce apps you have developed. - The goal of this app is to drive sales. Therefore, I expect the app to be user-friendly, secure, and have a seamless checkout process. - Experience with integrating payment gateways and managing user data securely would be an added advantage. - You will be expected to develop and implement user authentication features to ensure secure transactions. - Push notifications to keep users engaged and informed about new products and offers will also be necessary. - An underst...

I am in need of a comprehensive e-commerce application and website, which will include: - User Registration and Login - Product Catalog and Search Functionality - Shopping Cart and Checkout System For the payment gateway, I would require integration with Razorpay. It's important that the platform is professionally designed and user-friendly. The site will only be in English, so multi-language support is not necessary. Ideal skills for this job include: - Proficiency in e-commerce website and application development - Experience with integrating payment gateways, specifically Razorpay - Strong UI/UX design capabilities - A good understanding of security protocols for e-commerce platforms If you're confident in your ability to deliver this project within a reason...

+++PDF with details enclosed+++ Dear Freelancer: I need an experienced game artist to create 4 (FOUR PCS) unique 3D scenes for a mobile game aimed at children aged 6 to 12. Here's what I'm looking for: - You can choose the themes. Be creative and make them standout and interesting. - All scenes should have a 3D pop-up effect. This will help grab the attention of the kids who will be playing the game. ALWAYS understand that its a background scene so leave the PLAYFIELD free for characters!!! It needs to be very present but in a very modest way if u understand what I mean. Ideal Skills and Experience: - Prior experience in creating game scenes, particularly for children - Proficient in 3D design - Ability to make scenes distinctive and engaging - Fami...

I'm in need of a skilled Flutter developer to assist with a variety of tasks related to my mobile app. - **UI Design**: While I have a design ready, I would appreciate it if you could ensure its proper implementation. Your input and suggestions for improvement are more than welcome. - **Backend Integration**: I need help with the complete backend integration of the app. This includes the development of app functionalities and endpoints. - **Bug Fixing**: As with any project, bug fixing is crucial. I want someone who has a keen eye for detail and can ensure the app is running smoothly. Ideal candidates should have prior experience in Flutter development and be comfortable handling UI/UX design, backend integration, and debugging tasks. Experience in designing app functionaliti...

I'm in need of a skilled app developer to create an e-commerce grocery app exclusive for Android. Key Project Features: - It should support mobile wallet payments such as Apple Pay or Google Pay. - The app must include a secure user authentication system via phone number and OTP. Preferred Qualifications: - Proven experience in developing Android apps, particularly e-commerce applications. - Knowledge about implementing secure mobile wallet payment methods. - Ability to integrate phone number with OTP authentication system effectively. - Understanding of the grocery retail landscape will be a plus. This project requires precision and a strong focus on user experience so please only bid if you have relevant skills and experience.

...simple Android app written in Kotlin. I have a need to make some minor adjustments to it. It interacts with a Google Firebase Realtime database. The app is a very simple Proof of Delivery recorder,. It loads a driver's "diary" from firebase and allows the driver to mark that he has arrived. The driver can capture some photographs of the delivery and then mark that he has finished. This data is then sent back to firebase. I need a few small enhancements: 1. mark a job as "completed" in a separate date/time field 2. allow the user to "scan" a document rather than taking a photo. This would then be stored as a PDF. a scanned document provides better clarity than a photograph. This would be mandatory and photos optional 3. ensure it operates corr...

Project Overview: We are looking to develop a cutting-edge mobile application dedicated to supporting individuals in their health and wellness journeys. This app will stand out by integrating directly with a Wi-Fi-enabled smart weighing scale to automatically capture and sync weight and body composition data to the user's profile. The application will include features such as personalized goal setting, live wellness classes, and comprehensive health tracking. We seek a development team capable of executing this vision on both iOS and Android platforms within a strict three-month timeframe. Key Features and Functionalities: Smart Scale Integration: Integration with a Wi-Fi-enabled smart weighing scale to automatically update the app with the user’s we...

I need a virtual PA with extensive experience dealing with UK customers. Your primary responsibilities will include managing a moderate volume of emails, overseeing my calendar, and arranging travel. As a side task you'd also occasionally be charged with drafting procedure type documents. The ideal candidate should: - Have excellent written and verbal English language skills. - Be adept in Microsoft Office. - Have basic project planning abilities. To keep everything orderly, you should set aside a bit under an hour each day for calendar management. Remember - an organized schedule paves the way for smooth-sailing operations!

I'm seeking the expertise of an experienced Ethical Hacker. Your primary task would be: - Conduct a comprehensive vulnerability assessment of a mobile application Here's what you'll need for this role: - Proven understanding and experience with Local Area Network (LAN) systems - Expertise in conducting vulnerability assessments - Solid comprehension of mobile application structures and their potential security weak points. Your mission will be to identify loopholes and vulnerabilities that may exist, in order to uphold our commitment to providing a secure mobile application for our userbase. Your keen insight and detailed feedback on any potential weak points found will be instrumental to our ongoing development and fortificatio...

I am in need of a proficient mobile app developer for my project. The objective is to develop a robust application for both iOS and Android platforms that merges with an ERP system. Please note the specific functionalities required: • User Authentication: The app should be capable of effectively managing user log in details and security. • Data Visualization: Adequate implementation of visual data representation, providing clear insights. Your experience in cross-platform application development would be advantageous, particularly familiarity with platforms such as Flutter or React Native. Also, a sound understanding of API integration is necessary, as the app will need to communicate and exchange data with an ERP system. Please provide relevant exa...

...searching for an experienced Android app developer to create an education-focused application. The main functions for the application are: - Displaying text-based lessons: The app will host a multitude of topics for users to learn from. We need the text to be easily readable and engaging to keep users interested. - Conducting interactive quizzes and assessments: The app should score users based on their performance and provide relevant feedback. This feature should be seamless, user-friendly, and engaging. Potential Features may include: - User registration and login: I am still considering whether these features will be included or not. Therefore, a knowledge of integrating user registration will be favorable. The ideal candidate will have a strong backgroun...

It is necessary solve some few errors that have my application. It is necessary experience in laravel coding. Please send me your experiences in complex coding not simple web). If you show me the experiences, I will send the details of changes

It is necessary finish a project managemet application made in laravel. The change are: - make some change regard the flow, the links, the design, the ecommerce and report; - It is necessary experience in query, report charts, pivot builder and Business intelligence to change the reports that must have good design, many filter and cross. the charts must have drill down. Please answer only if have experiences in project management software and pivot-query-busienss intellegence. And show my the url of similar job made.

need a IT-Project Manager who have good experience in managing the developer and get the project completed within the deadline, must have delegation skills. Must have good knowledge on MERN stack including React Native 10-15 hours a week would work

I'm looking for an experienced React Native UI designer who can create a modern, minimalist mobile app design for Android. Key Requirements: - React Native Proficiency: You should have a solid background in React Native to know how to design for this framework specifically. - Mobile App Design Skills: You need to be proficient in mobile app design, understanding the constraints of smaller screens and the need for a clean, simple design. - UI/UX Expertise: A good eye for UI/UX is crucial - you should be able to create something that looks great and functions seamlessly. Please provide samples of your work and if possible, any previous experience with React Native.

...create a mobile application for both Android and iOS. The primary purpose of this app is to facilitate my fitness training services. Here's a more detailed breakdown of the project requirements: - The app will serve as a platform to feature multiple workout videos provided by me. Users will have the ability to watch these pre-recorded sessions. - A key feature of this app is the ability for users to schedule personal training sessions. This should be designed with a calendar view, allowing for easy and intuitive navigation. - It is essential that the app is built under our licence, with the understanding that this will be an ongoing project with continued input and maintenance from our end. Ideal candidates for this project will have: - Proficiency i...

I'm in need of a virtual assistant who can manage my emails, calendars, and social media. This will be a part-time gig, with more than 20 hours expected per week. I'm looking for someone with an entry level of experience. Key responsibilities include: - Email management: sorting through and responding to emails in a timely manner - Calendar management: scheduling appointments and ensuring my calendar is kept up to date - Social media management: helping me maintain an active presence on key social platforms Ideal applicants should: - Possess excellent communication skills - Be highly organized and detail-oriented - Be able to handle multiple tasks simultaneously - Have a basic understanding of email, calendars, and social media platforms This will be a great opp...

I'm in need of a talented developer who can assist in creating an application that can present a Unity 3D brain image on Android and iOS platforms. This job would require: - Proficiency in Unity 3D and Android development, with experience in iOS being a considerable asset. - Previous work in creating similar apps or integrating Unity 3D into Android and iOS platforms. - The ability to work under a tight deadline, as the project must be completed within a week If your skill set matches these requirements, do submit a bid. I look forward to working with an experienced and driven individual on this project

...engagement. Bringing clients for booking - IP Telephony: Robust integration with call tracking functionality and seamless operation within ERPNext. - Marketing Automation: Segmented and targeted marketing tools. Automatic email and whatsapp automations. - Scheduling and Online Booking: Flexible scheduling per doctor and per room, including online booking capabilities. Scheduling calendar should integrate into the website. - Notifications: Automated email and SMS notifications system. - Custom Medical Charts: Capabilities to save, access, and visualize pictures and scanned documents. - Photo Documentation: Secure management and storage of medical photos. - Invoicing and Financial Management: Full integration with Lexoffice for seamless financial opera...

I need someone good at flutter to create a hotel book...of points on the map. Key Responsibilities: - Develop and maintain high-quality mobile applications using Flutter - Work closely with the design and cross-functional teams to ensure an effective, visually appealing, and intuitive application - Implement clean, modern, and reusable code Ideal Skills and Experience: - Proven experience as a Flutter developer, ideally at a mid-level capacity - Strong knowledge of Android app development - Familiarity with Agile methodologies - Excellent communication and team collaboration skills - Attention to detail and a passion for delivering high-quality products - Ability to work autonomously and in a team - A portfolio of work demonstrating your Flutter expertise and Andr...

I am in need of an expert in AI development to create a mobile application that accurately predicts a person's age based on their facial features. Key points: - Aim is to deploy the AI model as a mobile app for both iOS and Android platforms. - The model should be highly accurate in terms of age estimation. - The app should have a simple and user-friendly interface. - The ability to analyze a photo and provide an age estimate is crucial. Skills and experience needed: - Proficiency in AI development, particularly in age estimation from facial features. - Prior experience in creating mobile applications for both iOS and Android. - Strong understanding of user experience, to ensure a seamless and engaging interface. - Knowledge of image proce...

I am in need of an Android app that will specifically focus on organizing tournaments for MOBA games. Key Features: - The app should be designed to cater to the needs of both tournament organizers and participants. - Tournament organizers should be able to: - Set up tournament brackets and schedules - Manage player registration and check-ins - Communicate with participants - Update scores and results in real-time - Participants should be able to: - Find and join tournaments - Check tournament schedules and brackets - Receive notifications and reminders - Communicate with other players The ideal freelancer for this project should: - Have a strong background in Android app development - Be familiar with the MOBA gaming genre - Have experience in creating tournament...

I'm looking for an expert to help me integrate an execute all steps of installing, configuring and preparing a full android simulator along with configuring the android dependencies. Requirements: - install waydroid for ubuntu 22.04 (and mac + windows) - install game "Last War:Survival Game" on a waydroid - suggest alternative simulators Ideal Skills: - Experience in using different android simulators This project could be a great opportunity for someone who is getting started in game development and wants to earn some positive reviews. Looking forward to your bids! MS1: - install the simulator on ubuntu 22.04 - install app in simulator and ensure it works there fully - provide each required step in a well structured markdown (in our git) - provide...

We require an ethical hacker with expertise in mobile game security. Focused specifically on player data handling, our project aims to identify vulnerabilities in our system, test the effectiveness of our security measures, and improve the overall security of our network. The ideal freelancer for this job should have: - Experience with ethical hacking. - In-depth knowledge of player data security measures. - A proven track record on mobile game security. Your duty will be to run exhaustive checks and tests to identify weaknesses and areas for improvement within our mobile game security system to ensure utmost data protection for our players.

...with a deep understanding of Android platforms. Here's what I'm looking for: - Proficient in App Development: The project revolves around developing an Android app, hence the developer should have extensive know-how of Flutter, an open-source UI software development kit created by Google. - Bug Fixing Skills: Any software or app can have bugs. Therefore, a critical part of the job will be identifying, researching, and resolving these bugs in the app and ensuring that it runs smoothly without any issues. Although the main functionality of the app hasn't been decided yet, you still need to be flexible and adaptable in regards to the functionality. Whatever it ends up being, our ultimate goal is a seamless and user-friendly experience for our users on the ...

I bought a betting website script from: and require API integration from: It should be done in 1-2 days. If you've done this before, please reach out. All sports should show here for example

...conduct a comprehensive basic vulnerability scan on my mobile application, as well as set up continuous real-time monitoring. The project involves: - **Basic Vulnerability Scan**: The task at hand is to thoroughly investigate and identify any potential vulnerabilities in the mobile application. This requires expertise in mobile application security and penetration testing. - **Continuous Real-time Monitoring**: Following the vulnerability scan, the security expert will be responsible for setting up a real-time monitoring system. This will help in the prompt detection and mitigation of any future security threats or breaches. The ideal candidate should have: - Proven experience in cyber security, with a specific focus on mobile appl...

I am an individual based in Guwahati, Assam, India, who is scouting for a proficient ...someone with remarkable skills in UI design, state management, and Firebase integration. Knowledge of Flutter Android Development is crucial to this role. Consideration will give to those who possess: - Superior skills in UI design - Proficiency in State management - Expertise in integrating Firebase - Proven experience in Flutter Android Development - Ability to integrate Google Auth - Unmatched dedication to delivering quality work. For the successful candidate, there's the potential for ongoing work. Your location is not a barrier; however, applicants from Guwahati, Assam, India will be at an advantage. Please apply if you fit the above requirements to prevent your applicati...

I'm in urgent need of a mobile backend developer with profound experience in Python Flask. Your primary task will be to integrate and create APIs on my current database structure. - The API should be able to perform: data retrieval, data modification, and user authentication among others. - Your success in this project is highly dependent on your ability to work with a moderate complexity level of database structure. - I'm looking for someone who can start on this project immediately, as the urgency for the API integrations is high. Key Skills and Experience: - Proficiency in Python Flask for backend development - Proven experience in integrating and creating APIs - Ability to work with moderate complexity databases - Strong knowledge in data retrieval, modification, and...

...software. Unfortunately, the software has been deleted. Now, I'm in need of a desktop application that can replace the functionality of Autoscope software. Key Functions: - Receiving all pictures and car number logs from the ANPR camera. - Enabling search for a specific plate number within the captured data. - Replacement of the complete functionalities that were offered by the Autoscope software. The ideal candidate for this project should have relevant experience in developing desktop applications, particularly for Windows. Skills in image processing and database management will be crucial. Familiarity with ANPR systems and understanding of number plate recognition algorithms is a definite plus. The application should be designed to deliver notifications locall...

I am in need of an experienced React developer to build an advanced web application targeting business-to-business clients. This project requires the delivery of a top-end solution with specific functionalities: - User authentication. As a key feature, the application should be equipped with robust user authentication capabilities to ensure secure access by clients. - Real-time updates. Real-time update functionality is necessary to keep the users informed and foster a dynamic user interaction within the application. - Integration with external APIs. The application needs to flawlessly handle Integrations with external APIs to facilitate uninterrupted data exchange. Key skills and experience for this project: - Excellent proficiency in React.js and familiar wi...

we are in the need of a simple multi image ( 28 square images on one 16/9 fullscreen ) slideshow, should be windows based, can also be mac based. The app will be used once to playout multiple pictures ( 800 ) taken at an event. App setup settings should be : select folder ( will be dropbox folder which has to be researched for new photos while running ) select image presentation time ( images show for 5-15 sec and then should fade to next image ). after setting up the app should be executed in full screen, exit via 'escape`. as soon as there are more than the 28 images in the folder it should be avoided to have double images shown.

We need android developer for touch pos restaurant we have already database we provide you design need development of product

As an e-commerce business owner, I'm in search of an experienced Android app developer, ideally with prior experience in the e-commerce sector. Specifically, my operation sells and delivers groceries. The selected freelancer will develop an intuitive, user-friendly app focusing on the following key functions: - Purchase Products: A smooth, uncomplicated purchase experience is essential. Customers should be able to add groceries to a shopping cart, and make a secure payment directly from the app. The most ideally suited developers will have a portfolio showcasing dynamic e-commerce apps, specifically those tailored towards grocery shopping. Creator's ability to design logically structured interfaces, while ensuring effortless navigation will be highly appreciated.

I'm seeking a talented AI expert to develop a comprehensive resume writer site and app. This platform will serve as an indispensable tool for creating personalized resumes. Ideal candidates for this project should possess strong skills in AI development, web and mobile app development, and user experience design. **Core Features:** - **Resume Templates:** Design and implement a variety of customizable resume templates to cater to different job industries and levels of experience. - **Resume Customization Options:** Incorporate AI-driven suggestions for resume customization, helping users to tailor their resumes to specific job postings or industries. - **Import/Export Resume:** Enable users to easily import their existing resumes and export the newly created ones in vari...

...cross-platform mobile application with the following features: user authentication and in-app purchases. The primary requirement is to ensure the app is compatible with both iOS and Android platforms. Your application should focus on showcasing your experience in Flutter development. Please provide examples of relevant past work you have completed in this space. Experience developing apps with user authentication and implementing in-app purchases will be highly valued. The successful freelancer will need to demonstrate: - Proficiency in Flutter with a strong portfolio of previous work - A good understanding of mobile app development, especially in user authentication and in-app purchases - Experience in creating cross-platform apps that work seamle...

I am looking to develop an educational app for the Android platform. This application will be a valuable tool for learning, providing quality content, and interactive features to engage users in educational activities. Key Features: - The app should be user-friendly and intuitive, with a focus on educational content. - The design should be clean, modern, and suitable for all types of users, especially students and educators. - It should offer varied educational resources, such as lessons, quizzes, and maybe even simple games to enhance learning experience. Key Requirements: - Experience in Android app development is a must. Please provide examples of previous apps you've developed. - Knowledge in educational app development or projects is a plus. Demonstrable ex...

I'm in need of a capable digital marketing assistant with a focus on B2B. Key Tasks: - Create an online marketing strategy - Create website content including revampings copy for the existing site and any new pages - SEO - Develop and Manage our LinkedIn account - Develop a sales funnel - Develop an engaging content calendar - Create and post relevant, industry-specific content - Monitor and respond to comments and messages - Collaborate with the team to align messages and strategies across platforms - Create and monitor LinkedIn and/ or Google Ads promotions Experience in B2B Marketing, especially on LinkedIn, is a significant plus. The ideal candidate should be able to demonstrate strong communication skills and experience in managing social media marketing for businesses. ...

...proficient game tester to provide comprehensive testing for my mobile game. The primary goals of this testing are to carry out game testing, bug detection, and anti-cheat testing. Key Responsibilities: - Conducting thorough testing to detect bugs in the game - Performing dedicated anti-cheat testing to ensure fair play - Sharing detailed reports on all encountered issues - Providing feedback on user experience The ideal candidate should have: - Proven experience in game testing, particularly in the mobile gaming sector - A keen eye for detail and an ability to thoroughly investigate potential bugs - A strong understanding of anti-cheat mechanisms and how to test for their efficacy Platforms: - The game is built for Android, thus the testing will be required on t...

I'm in need of an experienced Android developer proficient in Android Studio. The project involves tasks such as rooting Android devices and changing the IMEI of locked devices. Key Requirements: - Rooting Android devices - Changing IMEI of Android devices The purpose of these activities is for development and testing. Ideal Skills: - Proficient in Android Studio - Experience in rooting Android devices - Experience in changing IMEI Please note that the devices are locked by a carrier, so experience in handling locked devices is a plus. The chosen freelancer should have a good grasp of the Android ecosystem and the technicalities involved in modifying devices.