Deferred deep linking solves the 'installation gap' — the problem where standard deep links lose user context when an app isn't installed. Detour, a developer-first alternative to Branch.io and AppsFlyer, handles this by using deterministic matching on Android (via Google Play Install Referrer API with 100% accuracy) and probabilistic fingerprint-based matching on iOS. It hosts AASA and assetlinks.json files for Universal Links and App Links, provides SDKs for React Native, iOS, Android, and Flutter, and offers centralized link management and analytics. The post also explains why native iOS solutions like Universal Links, App Clips, and SKAdNetwork fall short for deferred deep linking use cases.
