Looking for a developer tools application.

I found this post which has a lot of good stuff but nothing quite like what it is I used before.

https://github.com/CorentinTh/it-tools/

IT Tools is REALLY close to what it is but this is web based and I remember it being an application.

It may be an iOS or iPad OS app that I am thinking of and IT Tools may have been the closest I could get on the computer.

Thanks for reading.