Attribr: A Free AppsFlyer Alternative for Indie Developers
Attribr is a lightweight install attribution SDK built for indie iOS and Android developers who need source tracking without AppsFlyer's enterprise costs. It tracks which link, campaign, or channel drove each install and measures retention at day 7, 14, and 30 with just 3 lines of code.
What Attribr Does Differently
AppsFlyer and Branch are built for marketing teams at scale. Attribr is built for you: indie developers who ship fast and want to know where your users came from. It tells you whether installs came from a link, paid campaign, organic search, or direct. Then it shows you how many of those users actually opened your app again at day 7, 14, and 30. That's attribution and early cohort retention in one dashboard. No monthly bill for a feature you barely use, no complex integrations, no vendor lock-in.
How It Integrates
Attribr's SDK is 50KB and has zero third-party dependencies, so it won't bloat your bundle or create security headaches. Integration takes 3 lines of code in Swift or Kotlin. Launch overhead is under 50ms, meaning your app startup won't slow down. If you're already tracking installs with a custom solution or spreadsheet, Attribr replaces that with proper cohort data and works on iOS 14.5+ without requiring ATT permission from users.
Install Attribution Without ATT
One of the biggest shifts in mobile was iOS 14.5 and App Tracking Transparency. AppsFlyer and Branch still rely on IDFA whenever they can get it. Attribr works without it. Your dashboard shows you source and retention even when users decline tracking. This means better data privacy for your users and cleaner attribution reporting for your app.
Dashboard and Retention Cohorts
Log into your web dashboard to see which sources drove the most installs, which had the best retention at day 7, and which are worth pursuing again. You can segment by cohort to spot trends in user quality. It's the data you'd pay hundreds per month to AppsFlyer for, delivered at no cost to indie developers.
Pricing That Scales With You
Attribr is free to start. Pricing scales only as your tracked installs grow, and you only pay for what you use. Unlike AppsFlyer's minimum commitments, you won't be penalised for being small. If you grow and need advanced features later, you can upgrade; if you stay indie, you stay free.
What Attribr Is Not
Attribr is not a Customer Data Platform (CDP) and not built for large enterprise marketing teams running complex multi-channel campaigns with full-funnel analytics. If you need advanced audience segmentation, CRM integration, or server-to-server event forwarding, AppsFlyer or Adjust may be better fits. Attribr is purpose-built for indie developers who want install source and early retention data without enterprise pricing.
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Frequently asked questions
Is Attribr really free?
Yes. Attribr is free for indie developers on the indie tier. Pricing only starts when your monthly tracked installs exceed certain thresholds, and it scales gradually from there.
Can I use Attribr if I have no ATT permission from users?
Yes. Attribr works without IDFA or ATT permission. You'll still see install source and retention cohorts even when users decline tracking.
How long does it take to integrate Attribr?
About 10 minutes. You add 3 lines of code to your Swift or Kotlin app, and the SDK handles the rest. There's no server-side setup or complex configuration.
Does Attribr work on both iOS and Android?
Yes. Attribr provides SDKs for both iOS and Android, plus a shared web dashboard to view your attribution and cohort data.
What if I need more advanced features later?
You can upgrade to a paid plan as your installs grow. Attribr pricing scales with your usage, so you only pay for what you need when you're ready.
Does Attribr replace my analytics app?
No. Attribr focuses on install attribution and early retention cohorts. Use it alongside your existing analytics tool like Mixpanel or Firebase to understand where users come from and how many stick around in the first month.