Reliable conversion tracking under iOS ATT without app store dependency?

iOS attribution headaches are killing our ability to measure subscription campaign performance. Tried SKAdNetwork but the data lag makes optimization impossible. Need web-based solutions that don’t rely on IDFA.

Has anyone achieved stable conversion tracking using first-party data collected before app install? Bonus if it integrates with MMPs.

Yes - moved our entire conversion point to web.

Using web paywalls where users subscribe BEFORE installing the app. All tracking happens via first-party cookies. MMPs get web-based conversion data instead of in-app. ROAS measurement became 10x clearer overnight.

Platforms supporting this flow handle the compliance automatically.

We fingerprint devices during web flow using battery API and screen specs. Not 100% accurate but matches ~65% of installs to campaigns.

Combine with server-side revenue tracking. Better than nothing.

Web conversions bypass ATT.

Three-part solution:

  1. Web-based subscription capture
  2. Email-to-device graph matching
  3. Probabilistic modeling

Gives us 85% attribution coverage without touching IDFA. Key is keeping users in web context until payment.