> For the complete documentation index, see [llms.txt](https://docs.sensecrypt.com/sensecrypt-v3.1.3/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sensecrypt.com/sensecrypt-v3.1.3/sensecrypt-mobile-sdks.md).

# SenseCrypt Mobile SDKs

The SenseCrypt Mobile SDKs allow a mobile app to read and decrypt SensePrint eID QR codes.

The SDKs have two flavours - online, offline.

The online SDK is small in size, but it needs to connect with the server for SensePrint eID verification/decryption.

The offline SDK is larger in size, but it can be used to verify/decrypt SensePrint eIDs with no network connectivity and completely on a mobile device. The offline SDK also offers a option, in which instead of packaging the models within the app, they are downloaded from a server. This allows to provide smaller app sizes to AppStore/PlayStore while still enabling offline capabilities.

The choice between online and offline versions will depend on your use-case and deployment scenario.

Both online and offline SDKs are offered for Android and iOS.