SDK integration guides and technical setup for subscription apps

September 15, 2026·13 min read

How to adapt your iOS app to iPhone Duo

Your iPhone app will run on iPhone Duo unchanged, but it won't fill either display until you rebuild. Two layout branches cover the device, and most of the fix works on Xcode 27 today.

Yurii KleimenovProduct Lead, Adapty Core

Build & Integrate21 min read

Google Play server-side purchase validation

How to verify purchase for an Android app — receipt validation. Subscription acknowledgement, refund tracking, server notifications for transactions.

Kirill PotekhinDec 15, 2022

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Build & Integrate11 min read

StoreKit 2 API: How Apple simplified integration of in-app purchases

Looking to integrate Apple in-app purchases into your iOS app? Our StoreKit 2 API Tutorial will guide you through the process, from setting up your project to handling transactions. Learn how to streamline your app's purchasing flow with this comprehensive StoreKit 2 guide.

Kirill PotekhinJul 8, 2021

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Build & Integrate20 min read

Step-by-step guide to run a scalable API on AWS spot instances

Discover how to reduce infrastructure costs by 3x using AWS EC2 Spot Instances for building scalable APIs. Learn from our experience and optimize your budget today!

Kirill PotekhinJul 22, 2020

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Build & Integrate7 min read

How to add in-app subscriptions to an iOS app

Learn how to add subscriptions for iOS in-app purchases with our comprehensive guide. Get started today and start monetizing your Apple app with in-app purchases!