If you have downloaded Eversoul from the Google Play Store, you can set a purchase password to avoid any unintended purchases.

How to set up a Google Play Store purchase password

1. Open Google Play Store and select the "Menu (≡)" icon on the top.
2. Select "Require authentication for purchases" from Settings.
3. Select "For all purchases through Google Play on this device" option.
4. Set a purchase password for your google account.