I bought the app, as I have already used Adobe Photoshop Elements and thus am very satisfied. Of course, the app has not nearly as many features, but to go to work the holiday (brightness, saturation, cropping, etc.) it was good enough. Convincingly I also find functions such as fades, the layers, transparency (which is the least Apps support), the crop, some effects or image search on Google for royalty-free images.
However: - The maximum supported resolution is 12 megapixels (4000 x 3000) - Both on my Nexus 5 (Photoshop Touch for phone), as well as on my Asus MeMo Pad HD 7 crashes the app after only the most basic image adjustments from - The price is not cheap I do not know how it is on other devices, but I personally work the above mentioned reasons not very happy with the app.