QuickPic is a worthy opponent to the Gallery 3D app and outshines the latter in a lot of areas, especially overall functionality. QuickPic is also designed very well and is very intuitive to use, making it an Android Market favorite for many already. With 500,000 downloads, QuickpPick is not just any other Android gallery app.
The biggest gain over Gallery 3D, which has to be assumed as the norm here, is definitely its larger package of editing options. Pictures can be rotated, cropped, sorted (meaning excluded or specifically included) moved and copied. These features make QuickPic quite an Android gallery powerhouse, just what most users want.
On top of all the editing goodness the app is fast, clean, pretty and easy to use but not 3D, which is one of the few things Gallery 3D still has over this app. On the other hand this absence of a three dimensional aspect makes QuickPic considerable more lightweight and a better option for users with an older Android device. In conclusion, as an Android user you are almost obliged to try QuickPic.