> 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/5.0/developing/form/actions/actions-description/group-others/get-app-certificate-fingerprint.md).

# Get App Certificate Fingerprint

Kalipso - Form - Actions - Actions Description - Group Others - Get App Certificate Fingerprint

Gets the app signing certificate SHA256 fingerprint.

Action available for the following operating systems:

![](https://3821468174-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LrTlA1suFa5N48x_83N%2F-MRyM0oaNsXwwPOj5IbC%2F-MRyMmurYkr5sJQek1Ij%2FAndroid2.PNG?alt=media\&token=eef074c1-97a0-44ae-a1ea-7c86dc6ac13a)

### 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 %}