BTC Auto Miner is a finance application developed by YYN Dev for Android devices. It allows users to generate virtual coins that can be exchanged for money in USD to their PayPal account. The app comes with a simple and intuitive interface that makes it easy to use.

To start using the app, users need to register themselves through the "Sign-Up" menu and fill in valid data. After registering, they can log in with their email address and password and top up their USD balance by clicking on the "(+)" button. Users can then buy one or more miner tools in the "Buy a Miner" menu, and their virtual coin mint will start running in a few moments. Once they collect more than one coin, they can exchange them in the "Exchange" menu.

The app has a few terms and conditions that users need to follow, such as registering personal data that is valid, having an email address registered with PayPal for withdrawal, and not registering multiple accounts. The app also warns users not to cheat with hack applications, as the developers reserve the right to block or suspend accounts that do so.

Overall, BTC Auto Miner is a user-friendly application that allows users to generate virtual coins for exchange easily. However, users need to follow the terms and conditions closely to avoid any issues.