There is an app called slidejoy that pays in form of paypal and gift cards just by unlocking your phone like you normally do. You get around 15 points a day and it only takes 200 points for $2. Basically each point is a penny.
You are going to unlock your phone throughout the day anyway. Might as well make money for it.
Link: getslidejoy.com/r/rbcrews1984.29455
This app is not on Google play? If it is please give me a link if not nevermine.
If you want develop this type of app for make money and advertising contact us…