Multi-Touch Attribution for Mobile Apps in 2026: Building a Privacy-First, Signal-Loss-Resistant Stack
6-layer attribution model for 85-110% signal recovery despite ATT, SKAdNetwork limits, and cookieless web: MMP click attribution, promo codes, post-install surveys, correlation analysis, incrementality testing, and media mix modeling. Tool stack setup with AppsFlyer/Adjust + GA4 + BigQuery, cross-channel reconciliation, privacy-compliant workflows, three dashboard frameworks, and common errors with fixes.