How to Turn Off In-Game Purchases

Power Rangers legacy war is a game that utilizes a pay to play model for users to advance in the game by buying abilities and new characters, or by simply competing and earning advancement. - a slower route. 

There is no way to turn off the game marketplace from within the game. The purchasing aspect is handled the Apple Play Center or Google Play accounts for the purchases.

However, you can manage this from Apple. 

https://support.apple.com/en-us/HT204396

You can use Screen Time to prevent unintentional or unauthorized purchases from the App Store and other Apple services. You can require a password for purchases, prevent certain types of purchases, or disable purchasing completely.

You can control purchases on an Apple device in a few ways:

• If children in your Family Sharing group have their own devices use,  Ask to Buy  to approve their purchase requests.
• If you let children use your device, you can require a password for every purchase.
• You can also turn off in-app purchases entirely using Screen Time on your own device or a child's device.

Google Play info:  https://support.google.com/googleplay/answer/1626831?hl=en

Thanks for playing,