Adobe Systems on Friday introduced a new Photoshop app for iPhone users that lets them edit photos from both their phone and their online library on Photoshop.com

The app is free of charge and offers tools such as cropping, image rotation, color controls, and simple one-touch filter effects that can change the look and feel of shots all at once. It also features undo and redo controls so that if users make a mistake, or want to revert back to the original, it takes just a few taps.

As soon as users are done editing any photo, they can either save it back to their phone or upload it to their Photoshop.com account. The app also doubles as a photo-taking tool since you can simply take a photo, then have it upload right away.

What makes the app notable (besides from being from Adobe) is that the entire editing control set works off gestures. Instead of using dials or sliders, users just need to swipe their finger across the screen to change things such as brightness or color values. The same goes for its filters, which can be whisked from one end of the screen to the other instead of taking up more screen real estate or using a drop-down menu. It's one of the more intuitive control methods I've seen on a mobile photo-editing app, and can be quite precise once you get the hang of it.

The app is available now and is free of charge, although Adobe's free Photoshop.com service has a 2GB limit, which can be expanded with an annual paid storage plan.

Read more