Oversatured pics after exporting it

Polarr is a fantastic app but I got a little problem in every version of it: After working on a photo and exported it in jpeg, the final photo looks oversaturated! It’s a bit frustating because the photo on the app looks totally different (in terms of colors) from the exported one. I have always to put it down the saturation slider.

forsus about Polarr Photo Editor Pro, v1.3.2