Does the app leave anything behind when you uninstall it?
If I install an app from the App Store and then uninstall it, will it leave any changes other than the system log?
Most apps will leave behind things such as receipts, preference files, scripts etc.
These are generally harmless but take up small amounts of disk space.
Using something like AppCleaner(freeware) will let you see what bits may be left over & allow you to selectively delete them too.
Random example…
