Simple  very FAST  & efficient. So far  it's my favorite gallery app. After the initial load (I have over 2 000 pics)  the app is very quick in viewing all pics for each album. You can change the background colors  increase the # of columns  move pics from internal to external memory  and when you edit a photo  it displays instantly in albums (unlike some other apps). Also  there are no ads. I only wish that the ""edit photos"" button was one click away with a button on the bottom right of the screen (rather than 2 presses on the top right since I have a big phone)  but that's not a big problem for such a quick loading app. Thank you for creating such an awesome gallery!