I need an Android app. I already have a design for it, I just need it to be built. popup app! black screen, popupps after unloking, one buton for exit and nothing else! must work on all samsung phones..
10 freelancers are bidding on average $32 for this job
i'am an experienced android developer with solid background in Material Designs, API integrations and UI/UX + Performance optimisations. you'll get your job done meticulously. have a look at my portfolio and Reviews.