Follow the next instruction to start using VPN service and protect you privacy when surfing the internet on Android. 

1/ Register an account. With this account you will be able to use your subscription on   Android or on other devices(iPhone, iPad, Mac OS X, Kindle, Windows 7/8/10).
For more information take a look at the Step 1: How To Register An Account on Android help article.

2/ Buy the subscription. For first time you can get 1 free day subscription to evaluate the service. After that you can select one of subscription plan for your needs. Step 2: How To Extend a Subscription on Android

3/ Start using our VPN service. For more information take a look at the Step 3: How To Connect VPN on Android help article.