Topic

In-App Purchases

4 articles on in-app purchases for app builders shipping to the App Store and Google Play.

A fan of blank matte charcoal cards with a single embossed rectangle on the top card, held by a brass paperclip, beside a dark smartphone and a small cream envelope on a slate-grey desk in soft moody side light

App Store Promo Codes vs Offer Codes: How to Give People Free Access to Your Expo App

App Store promo codes give someone a free download of your paid app. Offer codes give someone a free or discounted in-app purchase or subscription. Since March 26, 2026 Apple no longer lets you create promo codes for in-app purchases, so an Expo app with a subscription paywall hands out offer codes, and a paid-up-front app hands out promo codes. Here is what each one does, the limits Apple publishes, how to create them in App Store Connect, and how to redeem them from a RevenueCat paywall.

David September 27, 2026 9 min read

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Apple App Review Guideline 3.1.2 In-App Purchases

Guideline 3.1.2 Rejection: How to Fix Your Subscription Paywall for App Review

A Guideline 3.1.2 rejection means App Review found your auto-renewable subscription missing something Apple requires before a user can subscribe: the full renewal price shown prominently, the subscription name and length, what the user gets, a restore path, or working Terms of Use and Privacy Policy links. Here is what each 3.1.2 clause targets and the exact paywall checklist that clears it.

David September 25, 2026 9 min read

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A smartphone displaying a plain generic padlock icon resting beside a credit card and a small stack of coins on a warm wood desk in soft daylight

Apple App Review Guideline 3.1.1 In-App Purchases

Guideline 3.1.1 Rejection: How to Fix an In-App Purchase Violation

A Guideline 3.1.1 rejection means App Review found a way to unlock content or features in your app that does not go through in-app purchase. Here is what Apple's In-App Purchase rule actually requires, the narrow exceptions that do not apply to most indie apps, and what to change before you resubmit.

David August 30, 2026 9 min read

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A smartphone showing a subscription confirmation screen next to a laptop with code, representing in-app purchase sandbox testing

RevenueCat In-App Purchases Testing

How to Test In-App Purchases in Sandbox Mode on iOS and Android

Sandbox testing is where most paywalls break before a single real customer ever sees them. Here is how to actually test in-app purchases in sandbox mode on iOS and Android, plus the specific Expo mistake that stops purchases from working at all.

David August 11, 2026 8 min read

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