1. Please log into your DropAPK account first.

(If you don't have a DropAPK account, you just need to register free account: https://dropapk.to/register.html)

2. You will receive a premium key that you can activate here: https://dropapk.to/?op=my_account

3. Please enter your Premium Key in "Apply Premium Key" and click "Apply" to become Premium user.