Hey There,
Greetings Of The Day!
At the very first I would like to mention that my Android team have got enough expertise with such developments and they can fix all of your specified issues ( Facebook login not working, Push notifications not working, Must be verified that sync functions are working properly, check banner sync) within a short period of time.
Coming to your iOS development. I would like to convey that we have our team with proven experience over Iphone/ Ipad app coding. Years of experience with Objective C, iPhone SDK 5.0, XCODE, cocos2d & Cocoa touch. Versatility in creating XML & JSON web services for syncing with database.
Our core skills and experience:
# Objective-C, iPhone SDK, XCode, Cocoa, Cocoa Touch Frameworks.
# Core Java, Eclips IDE, Android SDK, XML
# Map Kit, GPS base user navigation and Tracking
# Photo and Camera base app with many advance filers
# Image processing in mobile apps, Image filters, Image Cropping and Image framing etc.
# Web Server integration using JSON, SOAP, XML and REST Web Service APIs
# SQLIte, Core Data and pList database design
# Apple App Store and Google Play Store submission
# FaceBook, Twitter, YouTube, Tumblr, Flickr, Instagram
# Push Notification, In App Purchase, iAD, AdMob
# Source code repository in SVN, Version GitHub etc. Test Flight build etc.
I hope this would be sufficient to bring your first interest in us.
Revert back to us and we can discuss in details over chat.
Regards,
Ibrahim Adil