Regarding this, why can't I purchase from the App Store?
If your payment method is declined in the App Store or iTunes Store. You can't make purchases or update apps until you change or update your payment method. If you have an unpaid balance in the App Store or iTunes Store, you might see one of these messages: "There is a billing problem with a previous purchase.
Also, how do I enable in app purchases? Enable In-App Purchase for iOS Device
- Go to device Settings.
- Tap Screen Time.
- Tap Content & Privacy Restrictions.
- Turn on Content & Privacy Restrictions.
- Tap iTunes & App Store Purchases.
- Tap In-app Purchases.
- Check Allow.
Additionally, why can't I purchase apps on my iPhone?
If you find that in-app purchases aren't enabled on your iPhone, the most likely problem is that they've been turned off in Screen Time settings. Open Screen Time to enable in-app purchases. If you still can't make in-app purchases, the payment information associated with your Apple ID might be out of date.
How do I purchase an app on my iPhone?
How to buy apps on your iPhone, iPad, or iPod touch
- Tap the App Store app on your Home screen.
- Browse or search for the app that you want to download, then tap the app.
- Tap the price or tap Get. You might need to sign in with your Apple ID.