I'm here to warn you against downloading FUTBIN.
The permissions you give to futbin are too much control for the app on your phone.
The app has automatic USSD code running executions that you authorize when downloading the app.
The apps will then start to subscribe and charge you up to $3 per day without your knowledge because you will think it's because you make a lot of calls.
Speak to your network provider and ask them to stop any subscriptions and block you permanently if you going to continue using this app.