Here is the guide for Android app developers:
Benefit is as you know Android is vastly spread across the globe,
you can create your own digital product with zero investment ( only time and knowledge )
Best thing is day by day people engagement on mobile increased more than PC
You can earn good amount through your application
Also you can help society by made an such a app will be helpful for society
Thanks, hope this answer will help you if not follow our blog on Android App Development Company.