> For the complete documentation index, see [llms.txt](https://docs.sentiance.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sentiance.com/sdk/api-reference/ios/user-creation-and-linking/user-linking.md).

# User Linking

- [SENTNoOpUserLinker](https://docs.sentiance.com/sdk/api-reference/ios/user-creation-and-linking/user-linking/sentnoopuserlinker.md): A no-operation user linker. Use this linker to create an unlinked (anonymous) Sentiance user.
- [SENTUserLinkingResult](https://docs.sentiance.com/sdk/api-reference/ios/user-creation-and-linking/user-linking/sentuserlinkingresult.md)
- [SENTUserLinkingFailureReason](https://docs.sentiance.com/sdk/api-reference/ios/user-creation-and-linking/user-linking/sentuserlinkingfailurereason.md)
- [SENTUserLinkingError](https://docs.sentiance.com/sdk/api-reference/ios/user-creation-and-linking/user-linking/sentuserlinkingerror.md)
- [SENTUserLinkingCompletionHandler](https://docs.sentiance.com/sdk/api-reference/ios/user-creation-and-linking/user-linking/sentuserlinkingcompletionhandler.md)
- [SENTUserLinker](https://docs.sentiance.com/sdk/api-reference/ios/user-creation-and-linking/user-linking/metauserlinker.md)