Deep linking infrastructure for mobile

Links that work.
Even before the app is installed.

Deferly provides deferred deep linking infrastructure for mobile apps — routing users to the exact in-app destination after install, with full attribution data included.

Start for free Read the docs →

deep_link_handler.swift

        // On app open — resolve deferred link

        let client = Deferly("YOUR_API_KEY")

        client.resolve() { result in

          guard let link = result.deepLink else { return }

          // Navigate to the original destination

          router.navigate(to: link.path)

          // Attribution data is already tracked

          print(link.attribution.campaign) // "summer_promo"

        }

How it works

From click to destination
in four steps

Users land exactly where you want them — whether the app is installed or not.

Create a link

Generate a smart deep link with your destination path and campaign parameters via API or dashboard.

User clicks

Deferly detects the device, OS, and whether the app is installed. Click data is captured instantly.

App install

If the app isn't installed, user is routed to the store. The click context is stored server-side.

Deep link resolves

On first open, the SDK retrieves the deferred link. User lands at the exact in-app destination.

Features

Everything Firebase
Dynamic Links had.
And more.

🔗

Deferred Deep Links

Survive the App Store install flow. Users land at the exact destination you intended, even on first open after install.

Core feature

📊

Attribution Tracking

Every link carry full campaign attribution — source, medium, campaign, ad group. Integrates with Google Ads via Conversion Upload API.

Attribution

🍎

iOS & Android

Universal Links on iOS, App Links on Android. Both platforms handled with one SDK and one integration.

Cross-platform

⚡

Instant Link Creation

Create links programmatically via REST API or in the dashboard. Bulk generation supported for large campaigns.

REST API

🛡️

Fallback Routing

Custom fallback URLs for web, desktop, and unsupported devices. Never lose a click to a dead end.

Routing

🔍

Click Analytics

Real-time dashboard with click volume, install rates, platform breakdown, and campaign performance metrics.

Analytics

Comparison

Why teams switch
to Deferly

Firebase Dynamic Links was shut down. Deferly is the drop-in replacement built for modern mobile infrastructure.

Feature	Deferly	Firebase Dynamic Links	Branch.io
Deferred deep links	✓	Discontinued	✓
Google Ads attribution	✓ Native	—	✓
Self-hosted option	✓	✗	✗
Transparent pricing	✓	N/A	Custom only
REST API	✓	✓	✓
Starting price	Free	Discontinued	$0 (limited)

Integration

Integrate in minutes,
not days

Simple SDK,
powerful routing

Drop in the Deferly SDK, initialize with your API key, and call resolve() on app open. That's the entire integration for deferred links.

For attribution, we handle the Google Ads Conversion Upload automatically — no extra configuration needed.

1 Install SDK via CocoaPods, SPM, or Gradle
2 Initialize with your project API key
3 Call resolve() on app launch
4 Create links via dashboard or REST API

AppDelegate.kt (Android)

          // 1. Add dependency

          // implementation "link.deferly:sdk:1.0.0"

          class MyApp : Application() {

            override fun onCreate() {

              super.onCreate()

              // 2. Initialize

              Deferly.init(this, "YOUR_API_KEY")

            }

          }

          // 3. In your launch Activity

          Deferly.resolve(intent) { link ->

            link?.let {

              navigator.navigate(it.path)

              // attribution auto-sent to Google Ads

            }

          }

Pricing

Simple pricing.
No surprises.

Start free. Scale as you grow. No hidden fees per click.

Starter

^$0

forever free

Up to 10,000 clicks/mo
Deferred deep links
iOS + Android SDK
Basic analytics
REST API access

Get started

Links that work. Even before the app is installed.

From click to destinationin four steps