Android free adfree photo crop (and video compression) app

It seems that the best apps are the simplest apps, which do one thing, and
they do that one thing well, so I went searching for a free/adfree app that
simply crops photos (given I keep getting photos of a new baby that are
taken by people on iPhones who don't know anything about composition).

Looking for just a reliable photo cropper, I found this app just now.
 <https://play.google.com/store/apps/details?id=com.sybu.imageresizer>

It does more than crop photos, but when I tried the photo-cropping feature,
I found it did the cropping exactly as I would have done it.

Simple. Quick. Safe for the original photos. Easy to use.

I send this to help others, and in case you also have a good simple photo
cropper app, you might add value by suggesting the ones you like best.