Grid : Photo Collage Editor is one of the great collage making app which lets you quickly adjust your photos making your collage beautiful.

Here are few important features:

Easy Adjustment
You can adjust your photos easily using gestures
Photo Filters
A wide range of filters which can be applied separately to every photo
Frames and Patterns
A list of frames and patterns can be applied to your photo
Tags
Add caption to your photo with proper colour customisation
Doodle
Paint your photo with rainbow style colours
Share
Share your photo on Facebook, Twitter , Instagram and Whatsapp.