I will make android app containing one simple activity for you.
I can add another activities if u want.
I will give you signed APK file and bundle and i can give you the source code for good price.
I can improve the app as you wish just select which extras you want there is a lot for good prices.(external services charges may be applied like firebase)
I can make custom design for you too.
I don't make illegal apps
I don't upload it to google play
coupon code E6SC3P2V72