Fix and Launch Native App in Android and Apple

Hi there, I need someone to go through this app and make changes so that it works fluidly. Currently there are glitches like login etc etc. I would probably need someone to work a couple of hours each month on it and then it could turn into more if the demand is what I think it will be. How much would you charge me to get this app working perfectly and into the app stores (iStore and Google Play)? https://s3.amazonaws.com/appforest_uf/f1620973188607x210848620823804960/MagPI.apk