Fishdom is free to play, though certain in-game elements can be purchased for real money. To avoid accidental in-app purchases, just adjust your device settings.
- Open the Play Store app.
- Tap the Menu icon and select Settings.
- Tap Require authentication for purchases.
- Select one of the authentication options.
- For all purchases through Google Play on this device. Authentication will be required for all Google Play purchases (including in-app purchases).
- Every 30 minutes. The system will request the password for Google Play purchases every 30 minutes. Just note that once you enter a password all purchases made over the following 30 minutes will not need a password.
- Follow the instructions on the screen.
For Kindle devices:
1. Open the Amazon Appstore application.
2. Go to Menu -> Settings.
3. Untick the In-app Purchasing option.