App Store guideline 4.4: Extensions
Apps that host or contain extensions must follow Apple's extension documentation and include some functionality of their own. Unofficial explanation, not affiliated with Apple. Apple's text prevails.
- Guideline
- 4.4 Extensions
- Section
- 4. Design
- This page
- Unofficial explanation, not affiliated with Apple. Apple's text prevails.
- Version
- Guidelines last updated October 16, 2026
- Official source
- Apple's App Review Guidelines
What it means
- The documents named are the App Extension Programming Guide and the documentation for Safari app extensions and Safari web extensions.
- Apps should offer something of their own, such as help screens and settings, where possible.
- The extensions an app makes available must be disclosed clearly and accurately in its marketing text, and the extensions themselves may carry no marketing, advertising or in-app purchases.
Related guidelines
Apple's text
This page is an unofficial explanation in our own words. Unofficial explanation, not affiliated with Apple. Apple's text prevails. Apple's wording is on its page, linked below.
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