# iOS SDK Documentation Index --- - [1. Install & configure](https://adapty.io/docs/sdk-installation-ios.md) _Step-by-step guide on installing Adapty SDK on iOS for subscription-based apps._ - [2. Enable purchases by using paywalls](https://adapty.io/docs/ios-quickstart-paywalls.md) _Quickstart guide to setting up Adapty for in-app subscription management._ - [3. Check the subscription status](https://adapty.io/docs/ios-check-subscription-status.md) _Learn how to check subscription status in your iOS app with Adapty._ - [4. Identify users](https://adapty.io/docs/ios-quickstart-identify.md) _Quickstart guide to setting up Adapty for in-app subscription management._ - [Use LLMs to implement Adapty](https://adapty.io/docs/adapty-cursor.md) _Install and configure Adapty SDK in your project using Cursor, ChatGPT, Claude, or other AI tools._ - [Get paywalls](https://adapty.io/docs/get-pb-paywalls.md) _Learn how to retrieve PB paywalls in Adapty for better subscription control in your iOS app._ - [Display paywalls](https://adapty.io/docs/ios-present-paywalls.md) _Discover how to present paywalls on iOS to boost conversions and revenue._ - [Respond to button actions](https://adapty.io/docs/handle-paywall-actions.md) _Handle paywall button actions in iOS using Adapty for better app monetization._ - [Handle paywall events](https://adapty.io/docs/ios-handling-events.md) _Handle subscription-related events in iOS using Adapty for better app monetization._ - [Use fallbacks](https://adapty.io/docs/ios-use-fallback-paywalls.md) _Learn how to use fallback paywalls and onboardings on iOS to ensure seamless user experiences._ - [Localize paywalls](https://adapty.io/docs/localizations-and-locale-codes.md) _Manage app localizations and locale codes to reach a global audience in your iOS app._ - [Implement web paywalls](https://adapty.io/docs/ios-web-paywall.md) _Set up a web paywall to get paid without the App Store fees and audits._ - [Handle errors when using the Paywall builder](https://adapty.io/docs/ios-troubleshoot-paywall-builder.md) _Troubleshoot Paywall Builder in iOS SDK_ - [Fetch paywalls and products](https://adapty.io/docs/fetch-paywalls-and-products.md) _Fetch paywalls and products in Adapty iOS SDK to enhance user monetization._ - [Present remote config paywalls](https://adapty.io/docs/present-remote-config-paywalls.md) _Discover how to present remote config paywalls in Adapty to personalize user experience._ - [Accept purchases](https://adapty.io/docs/making-purchases.md) _Guide on handling in-app purchases and subscriptions using Adapty._ - [Restore purchases](https://adapty.io/docs/restore-purchase.md) _Learn how to restore purchases in Adapty to ensure seamless user experience._ - [Implement Observer mode](https://adapty.io/docs/implement-observer-mode.md) _Implement observer mode in Adapty to track user subscription events in iOS SDK._ - [Report transactions in Observer Mode](https://adapty.io/docs/report-transactions-observer-mode.md) _Report purchase transactions in Adapty Observer Mode for user insights and revenue tracking in iOS SDK._ - [Present Paywall Builder paywalls in Observer mode](https://adapty.io/docs/ios-present-paywall-builder-paywalls-in-observer-mode.md) _Learn how to present PB paywalls in observer mode for better insights._ - [Handle errors](https://adapty.io/docs/ios-troubleshoot-purchases.md) _Troubleshoot purchases in iOS SDK_ - [Identify users](https://adapty.io/docs/identifying-users.md) _Identify users in Adapty to improve personalized subscription experiences._ - [Update user data](https://adapty.io/docs/setting-user-attributes.md) _Learn how to set user attributes in Adapty to enable better audience segmentation._ - [Check subscription status](https://adapty.io/docs/subscription-status.md) _Track and manage user subscription status in Adapty for improved customer retention._ - [Deal with App Tracking Transparency (ATT)](https://adapty.io/docs/ios-deal-with-att.md) _Get started with Adapty on iOS to streamline subscription setup and management._ - [Kids Mode](https://adapty.io/docs/kids-mode.md) _Easily enable Kids Mode to comply with Apple policies. No IDFA or ad data collected in iOS SDK._ - [Get onboardings](https://adapty.io/docs/get-onboardings.md) _Learn how to retrieve onboardings in Adapty for._ - [Display onboardings](https://adapty.io/docs/ios-present-onboardings.md) _Discover how to present onboardings on iOS to boost conversions and revenue._ - [Handle onboarding events](https://adapty.io/docs/ios-handling-onboarding-events.md) _Handle onboarding-related events in iOS using Adapty._ - [Test & release](https://adapty.io/docs/ios-test.md) _Learn how to check subscription status in your iOS app with Adapty._ - [SDK models](https://adapty.io/docs/sdk-models.md) _Understand Adapty’s SDK models to optimize in-app purchase handling._ - [Fix for Code-1000 noProductIDsFound error](https://adapty.io/docs/InvalidProductIdentifiers.md) _Resolve invalid product identifier errors when managing subscriptions in Adapty._ - [Fix for Code-1003 cantMakePayments error](https://adapty.io/docs/cantMakePayments.md) _Resolve making payments error when managing subscriptions in Adapty._ - [Migrate to v. 3.4](https://adapty.io/docs/migration-to-ios-sdk-34.md) _Migrate to Adapty iOS SDK v3.4 for better performance and new monetization features._ - [Migrate to v. 3.3](https://adapty.io/docs/migration-to-ios330.md) _Migrate to Adapty iOS SDK v3.3 for better performance and new monetization features._ - [Migrate to v. 3.0](https://adapty.io/docs/migration-to-ios-sdk-v3.md) _Migrate to Adapty iOS SDK v3.0 for better performance and new monetization features._ - [Legacy installation guide](https://adapty.io/docs/ios-legacy-install.md) _Get started with Adapty on iOS to streamline subscription setup and management._ - [Fetch legacy Paywall Builder paywalls and their configuration](https://adapty.io/docs/ios-get-legacy-pb-paywalls.md) _Retrieve legacy PB paywalls in your iOS app with Adapty SDK._ - [Present legacy Paywall Builder paywalls](https://adapty.io/docs/ios-present-paywalls-legacy.md) _Discover how to present paywalls in iOS using Adapty’s legacy methods._ - [Handle legacy paywall events](https://adapty.io/docs/ios-handling-events-legacy.md) _Handle events in iOS (Legacy) apps with Adapty’s event tracking system._ --- _Last updated: 2025-09-19T12:07:06.802Z_