# DeepLinkNow

> Deep links and deferred deep links for iOS, Android, React Native and Flutter, without the attribution and ad tracking of Branch or AppsFlyer. Any path on your domain works as a link.

- DeepLinkNow does deep linking only: no attribution, no ad tracking, no advertising IDs, no ATT prompt, no cross-app data.
- Any path and query on an app's link domain (yourapp.deeplinknow.com, or a custom domain on paid plans) is a working deep link. Nothing has to be created in a dashboard first.
- After an install, the SDK's checkDeferredDeepLink() returns the path and query the user originally tapped.
- iOS: the link page copies the link to the clipboard before the App Store; the SDK reads it on first launch (iOS shows an Allow Paste prompt). A scored fingerprint match is the backup.
- Android: the click ID goes through the Google Play Install Referrer, which is exact for Play Store installs. A scored fingerprint match is the backup.
- Fingerprint matches come with confidence_score (0-100) and match_quality (HIGH, MEDIUM, LOW). An IP match is not required. The developer picks the threshold.
- Retention: A deferred link can be claimed for 1 hour after the click, and stored fingerprints are deleted within 30 days.
- SDKs: iOS (Swift, SPM and CocoaPods), Android (Kotlin, Maven Central com.deeplinknow:dln-android), React Native and Expo (npm @deeplinknow/react-native, with an Expo Router helper), Flutter (pub.dev deeplinknow, also in FlutterFlow). All on version 1.3; React Native and Flutter wrap the native SDKs.
- MCP server for coding agents (npm @deeplinknow/mcp): Claude Code, Cursor, Claude Desktop, VS Code and Windsurf can read these docs, check a link domain and plan a migration. It uses a private key only for its optional link tools.
- Apple App Site Association and assetlinks.json are generated and hosted for every app.
- Link pages load no analytics or tracking scripts, and no DeepLinkNow domain is on the AdGuard or EasyPrivacy block lists.

## Docs

- [Quickstart](https://deeplinknow.com/docs/quickstart.md): Create an app, add the SDK and handle your first deferred link.
- [iOS SDK (Swift)](https://deeplinknow.com/docs/ios.md): Install with Swift Package Manager or CocoaPods, initialize, and read the deferred link on first launch.
- [Android SDK (Kotlin)](https://deeplinknow.com/docs/android.md): Install from Maven Central, initialize, and read the deferred link via the Play Install Referrer.
- [React Native and Expo SDK](https://deeplinknow.com/docs/react-native.md): The @deeplinknow/react-native package, a wrapper over the native SDKs.
- [Flutter SDK (Dart)](https://deeplinknow.com/docs/flutter.md): The deeplinknow package on pub.dev, a wrapper over the native SDKs. Works in FlutterFlow.
- [FlutterFlow](https://deeplinknow.com/docs/flutterflow.md): Deferred deep links in FlutterFlow with one custom action: a link's path is a page route, so links open the right page after an install with no mapping.
- [MCP server for coding agents](https://deeplinknow.com/docs/mcp.md): @deeplinknow/mcp: setup guides, domain checks, match explanations and migration plans for Claude Code, Cursor, Claude Desktop, VS Code and Windsurf.
- [Migrating from Firebase Dynamic Links](https://deeplinknow.com/docs/firebase-migration.md): Keep FDL-style long links by changing only the host (the app reads queryParams.link), or switch to paths. Code for React Native, iOS and Android.
- [Integration checklist](https://deeplinknow.com/docs/integration-checklist.md): Everything to check before shipping: domains, entitlements, intent filters, testing.
- [API authentication and keys](https://deeplinknow.com/docs/api/authentication)
- [Deep links API](https://deeplinknow.com/docs/api/deeplinks)
- [Campaigns API](https://deeplinknow.com/docs/api/campaigns)
- [Analytics API](https://deeplinknow.com/docs/api/analytics)
- [OpenAPI 3.1 spec (SDK endpoints and management API)](https://deeplinknow.com/openapi.json)

## Pricing and comparisons

- [Pricing](https://deeplinknow.com/pricing.md): every plan and limit, from the same numbers the product enforces.
- [Compared with every deep linking vendor](https://deeplinknow.com/compare.md): sourced and dated.
- [DeepLinkNow vs Branch](https://deeplinknow.com/compare/branch.md): Branch dropped its free tier. Custom domains start at $199/mo.
- [DeepLinkNow vs AppsFlyer](https://deeplinknow.com/compare/appsflyer.md): No deferred deep links on the free plan. Paid tiers need a sales call.
- [DeepLinkNow vs Adjust](https://deeplinknow.com/compare/adjust.md): Attribution first. Deferred links may be limited after an ATT opt-out.
- [DeepLinkNow vs Singular](https://deeplinknow.com/compare/singular.md): Free to 15,000 paid conversions. Every deep link is an attribution link.
- [DeepLinkNow vs Kochava](https://deeplinknow.com/compare/kochava.md): Free attribution with deferred links. Universal Links and your domain start at $500/mo.
- [DeepLinkNow vs Airbridge](https://deeplinknow.com/compare/airbridge.md): An MMP billed by data points: about $134/mo at 100,000 users.
- [DeepLinkNow vs Detour](https://deeplinknow.com/compare/detour.md): 1,500 free clicks, custom domains at $79/mo, and no match score in the app.
- [DeepLinkNow vs LinkTrace](https://deeplinknow.com/compare/linktrace.md): No SDK, fingerprint only, and no custom domain. Universal Links need its top plan.
- [DeepLinkNow vs AppsOnAir](https://deeplinknow.com/compare/appsonair.md): $54.97/mo for AppLink on your own domain, and no AppLink on the free plan.
- [DeepLinkNow vs URLgenius](https://deeplinknow.com/compare/urlgenius.md): Billed per click. Deferred links start at $199/mo on its Custom plan.

## Free tools

- [Deep link tester](https://deeplinknow.com/tools/link-tester): Paste a link: what a tap does on iOS, Android and in Instagram or TikTok, every redirect, and the exact path and query the app receives.
- [Social preview checker](https://deeplinknow.com/tools/link-preview): How a link unfurls in iMessage, Slack, WhatsApp, X and Facebook: og tags, image size and type, and crawlers the site blocks.
- [AASA validator](https://deeplinknow.com/tools/aasa-validator): Universal Links: is apple-app-site-association right, and does Apple's CDN have it?
- [assetlinks.json validator](https://deeplinknow.com/tools/assetlinks-validator): Android App Links: will verification pass, and what does Google say?
- [Can your links move?](https://deeplinknow.com/tools/switch-check): How your links move off Branch or AppsFlyer: one CNAME for your own domain, or a domain swap in the links for the vendor's.
- [Ad-block list check](https://deeplinknow.com/tools/adblock-check): Is the domain, or what its CNAME points to, on a block list?

## Guides

- [What is deep linking?](https://deeplinknow.com/deep-linking): Universal Links, App Links and URI schemes.
- [How deferred deep linking works](https://deeplinknow.com/deferred-deep-linking): The iOS clipboard handoff, the Android Install Referrer and scored fingerprint matches.
- [Firebase Dynamic Links alternative](https://deeplinknow.com/firebase-dynamic-links-alternative): Firebase Dynamic Links shut down on 2025-08-25. How to replace it with DeepLinkNow.
- [FAQ](https://deeplinknow.com/faq): Product, technical, privacy and billing questions.

## Optional

- [Everything in one file](https://deeplinknow.com/llms-full.txt): the docs, pricing and comparisons above, concatenated.
- [Deferred deep linking in Expo Router with +native-intent](https://deeplinknow.com/blog/expo-router-deferred-deep-links.md)
- [What you get on a paid DeepLinkNow plan](https://deeplinknow.com/blog/what-you-get-on-a-paid-plan.md)
- [Deferred deep links in Flutter with the deeplinknow plugin](https://deeplinknow.com/blog/flutter-deferred-deep-linking.md)
- [What Apple's ATT changed for MMPs, and why deep linking never needed it](https://deeplinknow.com/blog/apple-att-framework-mmps.md)
- [Do you need AI for deep linking?](https://deeplinknow.com/blog/do-you-need-AI-for-deep-linking.md)
- [Why DeepLinkNow costs less than Branch, AppsFlyer and Airbridge](https://deeplinknow.com/blog/why-is-deeplinknow-so-cheap.md)
- [How deep linking vendors lock you in, and how to avoid it](https://deeplinknow.com/blog/vendor-lock-in.md)
- [Why I built DeepLinkNow](https://deeplinknow.com/blog/why-I-built-this.md)
- [How deferred deep linking works, and why it got harder](https://deeplinknow.com/blog/deferred-deep-linking-2025.md)
- [Deferred deep linking in React Native and Expo with @deeplinknow/react-native](https://deeplinknow.com/blog/deferred-deep-linking-react-native-expo.md)