This app has 6 reviews for the CURRENT VERSION (now seven) and 34,000 reviews for ALL VERSIONS. I have been using this powerful tool for years but when I upgraded to iPhone 6s / iOS 9.2 my really old version gave up the ghost.
This version is slightly easier to use because the crop arrows are easier to tap and drag, however it also has some new issues:
Ads: the original version had no adds but if I were charged 5¢ for every photo I've cropped, I would have spent $10 by now. The ads are totally acceptable but if there is a paid, ad free version I'm going to upgrade!
Tutorial: the tutorial is fast but I hope it doesn't run every time I open the app, forever. Also, in the old version I was using, each crop saved a new photo. This version requires you to tap the save button to save your results. This is not included in the tutorial.
Crash: the app has crashed once, after I tapped the New Photo button.
Rate us!: Using the in-app shortcut sends you to the App Store but loads a "Null Result" App Page in the App Store. The user is then required to tap Search and type in Crop For Free…
This app continues to be my Go-To app for cropping photos!