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

# Older Versions

These guides are used in the older versions of the SDK. If you are still using this, please migrate to the latest version. These versions are still maintained by Cotter team.

**For iOS SDK v1.4.x or below**

{% content-ref url="/pages/-M4q-LjGBIcIq3PgnYt6" %}
[Sign In with Device](/sdk-reference/ios/ios-sdk-passwordless-login.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M35aUobglanfiWqjf7S" %}
[Sign In with Email/Phone Number](/sdk-reference/ios/ios-sdk-verify-email-phone.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M1js7LYj-yGbUtx3rXD" %}
[Biometric/Pin](/sdk-reference/ios/older-versions/ios-sdk.md)
{% endcontent-ref %}