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# App-ads.txt
- URL: https://www.adlingo.org/glossary/app-ads-txt/
- Published: 2025-01-15T12:00:00.000Z
- Updated: 2025-01-15T12:00:00.000Z
- Description: The app equivalent of ads.txt, designed to help prevent unauthorized selling of in-app advertising inventory.
- Author: Travis Lusk
- Tags: Programmatic, #glossary, #Import 2026-10-27 17:05

Ads.txt, extended to mobile apps. Unauthorized sellers found their way into in-app inventory the same way they found their way into web inventory. Same problem, same solution architecture, different environment. If you are buying in-app programmatic and you are not checking app-ads.txt, you are skipping a basic verification step.