How do I avoid accidental in-app purchases?

Bowling by Jason Belmonte is a free game, but you can acquire coins, chips, useful items and the roll in the Belmoslot machine through in-game purchases.
To avoid accidental purchases in the game, you need to set some limitations in your device settings.

If you have an iOS device:
- go to Settings;
- tap Screen time, then Content & Privacy Restrictions. If asked, enter your passcode;
- tap iTunes & App Store Purchases.

If you wish to completely disable in-game purchase:
- tap In-App Purchases and set to Don't Allow.
If you don't wish to disable purchases completely:
- tap Always Require. When you make a purchase you'll always be asked to enter your password, even if you're signed in with your Apple ID.


If you have an Android device:
- open Google Play Store;
- tap the menu icon in the upper-left corner, tap Settings, then choose Require authentication for purchases;
- you will be prompted to choose one of the authentication settings, follow the on-screen instructions after that:
1) For all purchases through Google Play on this device. Authentication is required for every digital content purchase through Google Play (including within apps).
2) Every 30 minutes. Every time you authenticate for a purchase, you can continue to buy all forms of digital content through Google Play (including within apps) for the next 30 minutes without authenticating again.
3) Never. Authentication is not required for any purchases.