> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso/6.0/documentation/actions/group-others/get-app-certificate-fingerprint.md).

# Get App Certificate Fingerprint

Gets the app signing certificate SHA256 fingerprint.

Action available for the following operating systems:

<figure><img src="https://1102213384-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FM6Wz3tBjSWbCweZ8NltT%2Fuploads%2Fiiaaisbz01gRttVRqxMX%2F02_Supported_OS_android.png?alt=media&amp;token=3ded5da3-f504-4968-b740-27bdc6f9bdde" alt="OS Supported: Android"><figcaption></figcaption></figure>

### Parameters

* **Target** - Control or variable to save the fingerprint.

{% hint style="info" %}
If more than one certificate is found, the fingerprints will be separated by CR.
{% endhint %}

{% hint style="info" %}
This is useful to check if the APK was recompiled and resigned with a different signature.
{% endhint %}