How to Scrub an App Purchase From Your Apple or Google Account

The App Store and Play Store both let you delete purchase history.
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How to delete apps - Apple Support

Clear the Clutter: How to Free Up Space on Your iPhone or iPad

Remove a payment method from your Apple ID – Apple Support (AU)

Buyer's Remorse? How to Request a Refund From Apple's App Store

View and remove your devices that are associated with Apple ID purchases - Apple Support (CA)

How to Manage in-App Purchases on iPhone or Android

How to Unsubscribe From an App on iPhone, iTunes, or Mac

Control personalized ads on the App Store, Apple News, and Stocks - Apple Support

Request a refund for apps or content that you bought from Apple - Apple Support (NG)

How to Change Google Play Wallet in-app Purchases on Android

How to Enable In App Purchases on iPhone and iPad

Remove a payment method from your Apple ID - Apple Support (EG)

Delete book and audiobook downloads from your device - Apple Support

Apple ID: Everything You Need to Know - MacRumors

Apple Pay Stripe Documentation