To allow purchases on your phone, you need to enable payment methods and authorize in-app purchases in your settings. For Android, check Google Play for valid payment methods and set "Require authentication for purchases". For iPhone, go to Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases to allow in-app purchases.
How to enable or disable in-app purchases on Android
Play Store app
Here are some common reasons why you can't make in-app purchases on your iPhone: The content and privacy restrictions in the iPhone's settings stop you from making in-app purchases. If your payment details are incorrect or outdated, you won't be able to make purchases.
On your iPhone or iPad
If you don't have any in-app purchases in App Store Connect, go ahead and create one by following our guide on iOS Product Setup. Next, navigate to your in-app purchase and click Turn On under Family Sharing. Double check that you're turning on family sharing for the correct in-app purchase!
Make sure you're signed in with the same Apple Account that you used to make the purchase. Make sure that in-app purchases are allowed on your device. Restart your device.
Go to the Settings app on your iPhone. Tap Screen Time, then tap Content & Privacy Restrictions. Turn on Content & Privacy Restrictions. Tap iTunes & App Store Purchases, then choose restrictions for installing or deleting apps and in-app purchases.
Steps
Find your purchases, reservations & subscriptions
Screen Time can disable in-app purchases, so you'll need to have access or permission to change it. Open "Screen Time" settings → "Content & Privacy Restrictions" → "iTunes & App Store Purchases" → "In-app purchases" → "Allow".
Force stop, then reopen the app or game
On your iPhone or iPad
Open the Settings app. Tap Family. If you're the family organiser, make sure that Purchase Sharing is turned on. Then you can tap a family member's name to see if Ask to Buy is turned on.
Find and download apps purchased by you or family members
The Restore Purchase option allows you to regain access to features you've previously paid for, especially if you encounter issues with your subscription or have reinstalled the app. You should use the Restore Purchase option in the following situations: You've reinstalled the app and need to recover your subscription.
Apple Store Subscription - how do I re-activate my subscription?
You can't download apps due to payment issues because of an unpaid balance, a declined card, or a need for updated info, even for free apps, requiring you to update payment details in Settings > [Your Name] > Payment & Shipping, pay outstanding balances, or contact your bank; check for Screen Time restrictions and try restarting your device as well.
Make sure both your device and your child's device have the latest version of iOS, iPadOS or macOS. If Focus is turned on for your device, check the settings to make sure you can receive time-sensitive notifications such as Ask to Buy requests. Or turn Focus off to see if that allows notifications to come through.