polarr is a new online photo editor, which describes itself by being the most advanced one. And indeed the online app is fast and has some outstanding featues, which I personally miss even within some photo and graphic software. The feature I am talking about is the feasibility to easily store a processed version and to work on another style without having to store and reload the former version. Handling various versions of one photo is most easy with polarr.
Regarding the tools the app has a comprehensive set of functions including online albums and sharing facilities at the end. Serving the professional crowd this set even includes a watermarking function. What is most interesting again is that the app has some artificial intelligence integrated at the backend. This means that the app is learning your favorite styles, which become stored and reusable without the need to save it: polarr.