TL;DR
Apple's App Tracking Transparency (ATT) requires apps to ask permission before tracking. Since iOS 14.5, approximately 75-85% of users opt out. Impact: reduced pixel data on Meta, TikTok, and Snapchat (fewer reported conversions, delayed data, less accurate targeting), smaller retargeting audiences, less effective lookalike audiences, and attribution gaps. Mitigation strategies: implement server-side tracking (Conversions API) on all platforms, use Google's Enhanced Conversions, configure Aggregated Event Measurement (Meta), enable Advanced Matching, focus on first-party data collection, and prioritise Google Search ads (less impacted since Search intent signals remain strong).
Overview
Apple's App Tracking Transparency (ATT) requires apps to ask permission before tracking. Since iOS 14.5, approximately 75-85% of users opt out. Impact: reduced pixel data on Meta, TikTok, and Snapchat (fewer reported conversions, delayed data, less accurate targeting), smaller retargeting audiences, less effective lookalike audiences, and attribution gaps. Mitigation strategies: implement server-side tracking (Conversions API) on all platforms, use Google's Enhanced Conversions, configure Aggregated Event Measurement (Meta), enable Advanced Matching, focus on first-party data collection, and prioritise Google Search ads (less impacted since Search intent signals remain strong).
Related Guides
See our complete guide library for detailed coverage of account setup, tracking implementation, campaign creation, audience building, creative best practices, and optimisation strategies across all platforms.
Frequently asked
Questions & answers
How long does setup take?
Most configurations take 10-30 minutes. Full campaign setup and ongoing optimisation is a continuous process.
What budget should I start with?
Start with enough to generate at least 50 conversions per week for the platform's algorithm to learn effectively. This varies by industry and CPA.
When should I expect results?
Allow 2-4 weeks for the initial learning phase. Meaningful performance trends typically emerge after 30 days of consistent spending.
Was this guide helpful?
Your feedback helps us improve our guides