If you right click (control click) on Cookie 5.app
navigate to /Content/Resources/
and delete the language folder you don't want
they look like this
en.lproj
I think it will probably render Cookie unusable though?
but it's worth trying, you can easily move it to the trash and redownload.
![:relaxed: โบ](https://support.sweetpproductions.com/assets/plugins/nodebb-plugin-emoji/emoji/android/263a.png?v=2fqiv4oorlt)