Glossary

App Tracking Transparency

Updated on Jun 1, 2026

Learn what App Tracking Transparency means, how ATT affects tracking permission, and why mobile teams need privacy-safe workflows.

What Is App Tracking Transparency?

App Tracking Transparency, often shortened to ATT, is Apple's framework for requesting user permission before tracking their activity across other companies' apps and websites.

Apple's developer guidance says apps need user permission through ATT when tracking users or accessing the device advertising identifier for tracking purposes on supported Apple platforms.

How ATT Works

ATT usually appears as a system permission prompt. The app can explain why it wants permission, but the user chooses whether to allow tracking.

ATT can affect:

• Advertising identifiers
• Ad attribution
• Retargeting
• Third-party analytics
• Data sharing with ad networks
• Campaign measurement
• Privacy disclosures

Whether a user grants permission or not, teams must still follow Apple's rules around data use and fingerprinting.

Why It Matters

ATT changed how many mobile advertising and analytics workflows operate on iOS. Teams can no longer assume that cross-app tracking permission is available.

This matters for app ads, app monetization, app store optimization, and campaign analysis. If attribution changes, teams need to understand which metrics remain reliable and which require privacy-safe alternatives.

Practical Testing Criteria

Teams should test:

• First-run prompt timing
• User explanation copy
• Allowed and denied states
• Analytics behavior after denial
• Ad attribution behavior
• Consent state persistence
• Store privacy disclosures
• Regional policy requirements

Testing should not attempt to bypass privacy controls. It should confirm that the app behaves correctly under both permission outcomes.

Teams should also keep ATT behavior separate from Android privacy testing. Android and iOS have different permission models, advertising identifiers, and platform policies. A campaign or analytics workflow that works on one platform may need a different measurement design on the other.

The strongest implementation treats consent state as part of the workflow data. Reports should show whether results came from permissioned tracking, aggregated measurement, first-party events, or another privacy-safe method.

How MoiMobi Fits

MoiMobi cloud phones focus on Android execution, but mobile operations teams often manage mixed-platform growth workflows. ATT is still important context when comparing advertising, attribution, and privacy behavior across platforms.

For MoiMobi's Android-centered workflows, the broader lesson is the same: privacy, consent, and policy boundaries must be built into operational testing.

Bottom Line

App Tracking Transparency is a user permission framework for cross-app and cross-site tracking on Apple platforms.

For mobile teams, it requires privacy-safe analytics, compliant ad workflows, and clear testing for both allowed and denied states.