iOS Attribution Without App Tracking Transparency
Attribr tracks which source drove each iOS install and measures 7, 14, and 30-day retention without requiring App Tracking Transparency permission. It's a free attribution SDK built for indie developers who need install source data but can't afford enterprise tools like Branch or AppsFlyer.
How Attribr Works Without ATT
Attribr uses deterministic attribution on iOS 14.5 and later, meaning it identifies install sources through direct measurement rather than relying on IDFA or SKAdNetwork. When a user taps a link you control (via email, social, or your own marketing), Attribr records that tap and matches it to the subsequent app install on the same device. No ATT prompt needed. This works because the attribution happens server-to-server before the app even launches. The SDK itself is only 50KB, adds less than 50ms to your launch time, and has zero third-party dependencies.
What You Can Measure
Attribr tells you the install source for each user: which campaign, link, or channel brought them in. It also tracks cohort retention at day 7, 14, and 30 so you can see which sources drive users who actually stay and use your app. You can see this data in a simple web dashboard. For indie developers, this is the core insight you need to decide where to spend marketing time without paying thousands per month for a CDP or enterprise attribution platform.
Three-Line Integration
Adding Attribr takes minutes. For Swift, you initialise the SDK with your API key and call one method when your app launches. Android (Kotlin) follows the same pattern. Attribr handles the rest: it captures the attribution context, logs the open events at the right times, and syncs the data to your dashboard. No server-side setup, no webhook config, no complex documentation to parse. If you've integrated any SDK before, this will feel familiar and fast.
Who Attribr Is Built For
Attribr exists because indie developers and small studios need attribution data but get priced out of traditional tools. Enterprise attribution platforms often charge per install or per tracked event, which becomes expensive as you grow. Attribr's free tier covers indie needs. As your app scales and you hit higher install volumes, pricing scales transparently with your actual usage. You're not paying for features you don't need or minimum commitments that don't fit your stage.
No Third-Party Trackers
Attribr doesn't use Facebook Pixel, Google Analytics, or other third-party SDKs. It's just your app, the Attribr SDK, and our attribution infrastructure. This keeps your app lightweight, reduces privacy concerns for your users, and simplifies compliance. You know exactly what data is being collected and where it goes.
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Frequently asked questions
Do I need to prompt users for App Tracking Transparency to use Attribr?
No. Attribr works without ATT permission. It uses deterministic attribution based on link taps and install timing, so you can measure install sources without IDFA or SKAdNetwork.
Can I use Attribr alongside my existing analytics?
Yes. Attribr is purpose-built for install attribution and retention cohorts. You can use it alongside Firebase, Amplitude, Mixpanel, or any other analytics tool.
Is Attribr suitable for enterprise marketing teams?
Attribr is designed for indie developers and small studios. If your team runs large-scale campaigns or needs advanced audience segmentation, you may want to evaluate enterprise attribution platforms instead.
How much does Attribr cost?
Attribr is free for indie tier usage. Pricing scales with your tracked installs as you grow. Check attribr.dev for current pricing tiers.
Does Attribr work on Android?
Yes. Attribr provides SDKs for both iOS and Android, plus a shared web dashboard to view attribution and retention data across both platforms.
How quickly can I integrate Attribr?
Most developers integrate Attribr in under an hour. The SDK requires only 3 lines of code in Swift or Kotlin, and then you're measuring install sources and retention.