Attribr by MRVL vs AppsFlyer: attribution tools compared for 2026
If you're an indie developer or small studio trying to understand which marketing channel drives your app installs, Attribr by MRVL is purpose-built for you and costs nothing. AppsFlyer is the industry standard for large mobile teams, but its pricing and feature complexity are aimed at enterprises spending millions on user acquisition. The choice depends almost entirely on your budget and team size.
Quick verdict
Attribr by MRVL is the better choice if: you're an indie developer or small team, your budget for attribution tools is minimal or zero, you need straightforward install source tracking without enterprise bloat. AppsFlyer is better if: you're part of a mid-market or enterprise mobile team, you need advanced analytics, deep partner integrations, or sophisticated campaign management, and your company has approved the budget.
Side-by-side comparison
Install attribution: Both track which link or campaign drove each install. Attribr by MRVL does this without needing App Tracking Transparency (ATT) permission on iOS 14.5+, while AppsFlyer requires it for iOS attribution depth. Retention tracking: Attribr by MRVL tracks 7-day, 14-day, and 30-day opens in a simple cohort view; AppsFlyer offers more granular retention analytics and custom event tracking. SDK footprint: Attribr by MRVL is 50KB with zero third-party dependencies and adds less than 50ms to app launch; AppsFlyer's SDK is heavier and its launch overhead is measurably higher. Integration complexity: Attribr by MRVL requires three lines of code in Swift or Kotlin; AppsFlyer requires more setup and configuration. Partner integrations: AppsFlyer connects to hundreds of ad networks, MMPs, and analytics platforms; Attribr by MRVL focuses on core attribution and doesn't offer deep third-party ecosystem links. Analytics depth: AppsFlyer includes advanced funnels, cohort analysis, and predictive models; Attribr by MRVL provides install source and basic retention, intentionally simplified. Platforms: Attribr by MRVL covers iOS and Android with a web dashboard; AppsFlyer supports those plus web, OTT, and desktop.
When Attribr by MRVL is the better choice
You're bootstrapping or self-funding your app and can't justify attribution software costs. You want to know which marketing channel is driving installs without learning a complex analytics platform. Your app is new and you're testing channels early; a lightweight, free tool lets you validate hypotheses before investing in paid user acquisition. You care about app launch speed and want minimal SDK overhead. You're an iOS developer who hasn't implemented App Tracking Transparency (ATT) and need attribution without waiting for user consent. You prefer simplicity over feature depth. You need to integrate quickly (three lines of code is genuinely faster than AppsFlyer's onboarding).
When AppsFlyer might suit you better
Your company has a dedicated mobile marketing team and the budget to match. You run campaigns across multiple ad networks and need all of them integrated into one dashboard. You require sophisticated attribution modeling, multi-touch attribution, or incrementality testing. You're managing user acquisition at scale and need predictive analytics or churn forecasting. You need support for platforms beyond mobile (web, smart TV, gaming consoles). You have a complex user journey that demands event-level granularity and custom funnel analysis. Your stakeholders expect AppsFlyer's reporting format and you've already built workflows around it. You're part of a larger org and need vendor stability, SLAs, and dedicated account management.
Pricing comparison
Attribr by MRVL: Free for the indie tier. Pricing scales with the number of monthly tracked installs as you grow, but there is no cost to get started. AppsFlyer: Custom pricing based on monthly active users and feature tier. Expect starting costs of thousands of pounds annually for any meaningful setup; most indie developers never get a quote because the minimum contract value is out of reach. If you're spending under £500 per month on user acquisition or your app has fewer than 10,000 monthly installs, Attribr by MRVL is almost certainly free and AppsFlyer is prohibitively expensive.
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Frequently asked
Can Attribr by MRVL replace AppsFlyer for my team?
Only if you're a small team with simple attribution needs. Attribr by MRVL answers the core question: which marketing source drove this install? It doesn't replace AppsFlyer's analytics depth, partner network, or multi-touch attribution. If you're running advanced campaigns, using programmatic ad buying, or need cohort analysis beyond 30 days, AppsFlyer is still the better tool. But if you're testing early channels and want to know install sources without paying enterprise prices, Attribr by MRVL is sufficient.
Does Attribr by MRVL work without App Tracking Transparency on iOS?
Yes. Attribr by MRVL tracks installs without requiring ATT permission on iOS 14.5+. AppsFlyer can also work without ATT but gets more complete data if users grant permission. For indie developers who haven't implemented ATT, Attribr by MRVL removes a friction point.
How light is Attribr by MRVL's SDK compared to AppsFlyer?
Attribr by MRVL is 50KB with no third-party dependencies and under 50ms launch overhead. AppsFlyer's SDK is significantly heavier and its impact on app startup is measurably higher. If you're optimising for app performance or targeting devices with limited resources, Attribr by MRVL wins.
Can I migrate from Attribr by MRVL to AppsFlyer later?
Yes. Both tools track similar core data (install source, timestamp, basic user cohorts). However, they don't have an automated migration path, so you'd need to set up AppsFlyer from scratch. Your historical data from Attribr by MRVL remains in that platform. If you're starting small with Attribr by MRVL and grow into needing AppsFlyer, you can make the switch, but plan for a parallel running period.
Which tool is better for tracking retention?
AppsFlyer offers more sophisticated retention analysis, custom event tracking, and longer time horizons. Attribr by MRVL tracks whether users open the app at day 7, 14, and 30 post-install, which is useful for early-stage validation but not for detailed retention cohorts. If retention analysis is central to your strategy, AppsFlyer is the stronger choice.