
Streaming's vertical feeds are marketing locked behind a paywall
Eight major streamers shipped vertical video feeds in 2025 and 2026. Nearly every feed sits behind a paywall as a retention play, but the format's real strength is acquisition.
Strategies for full-funnel subscription growth across acquisition, onboarding, paywalls, and retention.

Apple Fiscal Calendar 2022 starts on September 26, 2021 and ends on September 24, 2022. Learn how this is used for app developer payments.

iOS 15 introduces tons of new subscription and IAP capabilties including refunds, customer support, StoreKit 2, new server APIs and server notifications, and more.

Google Play Billing Library v4, comparative metrics, progressive web app support, and more. Everything you need to know about IAPs from Google I/O.

Learn how to add in-app purchases in SwiftUI using StoreKit 2. Boost your app's revenue with seamless in-app purchase integration in SwiftUI.

Learn how to implement in-app purchases in your Android app with this comprehensive guide. Step-by-step instructions for setting up in-app purchases.

Server side validation of Apple App Store receipts can be tricky. Learn step-by-step how to build a simple python script to handle the basics to verify receipts.

Apple announced a lot of changes to subscriptions and IAP in iOS 14 at WWDC this year. Our summary has you covered on the most important changes.

Nami ML is celebrating our favorite tech conference, Apple's WWDC21, with a vintage industry swag contest.

Development is complete, bugs squashed, and the code is clean. Here's what you need to know before submitting an app to the App Store for review.

Tip jars are an easy way to start generating revenue from users that love your app. We step through the entire process of adding a tip jar to an iOS app.

So your app was rejected. App Store rejections are common but are usually simple to resolve. Learn about typical rejection reasons, including those relating auto-renewable subscriptions and IAPs.
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