Apps that gives you recharge on downloading apps

It has started to become a trend this days  by companies to give free recharge on downloading their own app and chatting for some days or sending free stickers to each other and accumulating points and redeeming After some points. It is done to make people use their app and make them realize how good the app actually is.

Line , we chat are the apps that provide recharge for sending stickers to other users.

There are many apps that also provide recharge for installing third party apps. You are paid a specific amount of points for installing or trying out a third party app. You can redeem the collected points in the form of recharge after collecting the minimum redeemable amount.
Mcent , ladoo , pocket money, Earn talktime are the apps providing it.