What is IDFV used for?

IDFV is used by developers to analyze user activity, behavior, and engagement across multiple apps owned by the same company.

Does IDFV require user consent?

No. Because IDFV is limited to a single developer’s apps and does not track across vendors, it does not require user permission under Apple’s privacy rules.

Yes, indirectly. The IDFV resets when all apps from that developer are deleted from the user’s device.

Can IDFV be shared with advertisers?

No. Apple prohibits combining IDFV data with external data sources for advertising without explicit user consent.

What happens to IDFV after ATT?

IDFV remains accessible even after the introduction of App Tracking Transparency, making it a key privacy-safe identifier for first-party data.

IDFV is a first-party identifier assigned by Apple to help developers measure user behavior across their own apps.

It does not require user consent and complies with Apple’s privacy standards.

IDFV cannot be used for third-party attribution or advertising.

It resets when all apps from the same developer are deleted from the device.

IDFV has become a critical tool for developers in a privacy-centric mobile ecosystem.

Identifier for Vendors (IDFV)

Product

Measure
Analyse
Engagement
Cross-App Messaging

Solutions

Marketing Teams
Product Teams
Data & Analytics
App Growth

Developers

Documentation
SDK Reference
Migration Guides
Migrate from Firebase

Resources

Blog
Glossary
Use Cases
Free Link Generator

Company

Privacy
Security
SLA

Terms of Service Contact us