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I have been using Photoshop editor and other ps type apps but this one seems to be pretty Easy to pick up.
Filters are nice touch and easy to change. It's generally quite quick. I do like the multitouch. Clone/move tools are clever. My only very minor gripe is colour tone possibilities. Besides warmth I would like to change the hue, or green/purple.
I have not found smart selection to be useful yet as I have not had much success in that dept but A for effort!
Before I post my app I like to sign it.......It would love it, if this app did some texting Apart from that it's fairly straight forward and easy to use.....the"Touchup" tool is excellent for those little things that destroy a nice photograph .