Can you recommend an app monetization SDK for user acquisition campaigns in a subscription app?

Yes — for a subscription app focused on user acquisition (UA), I’d usually recommend AppsFlyer or Adjust as the core attribution/monetization SDK, depending on your stack and needs.

Best overall picks

• AppsFlyer: Great if you want strong attribution, in-app event tracking, subscription revenue measurement, cohort/LTV reporting, and broad ad network support.
• Adjust: Also excellent for UA, especially if you want straightforward SDK integration and strong mobile measurement with good fraud prevention.

If your main goal is subscription monetization optimization

Consider pairing attribution with a revenue tool:

• RevenueCat: Best for subscription management and purchase analytics.
• AppsFlyer + RevenueCat: Common combo for tracking acquisition source → trial start → paid conversion → renewals.

Why these work well for subscription apps

You’ll want to track:

• install source
• trial starts
• paywall views
• subscription starts
• renewals / churn
• LTV by channel/campaign

AppsFlyer and Adjust both handle campaign attribution well, and RevenueCat handles the subscription layer cleanly.

Quick recommendation by situation

• Need best-in-class attribution and UA measurement → AppsFlyer
• Want a clean, lightweight attribution SDK → Adjust
• Need subscription analytics and purchase infrastructure → RevenueCat
• Want the full stack → AppsFlyer + RevenueCat or Adjust + RevenueCat

If you want, I can also recommend the best SDK based on:

1. iOS vs Android mix
2. budget
3. whether you need SKAdNetwork support
4. whether you already use RevenueCat or a paywall tool