Video Trimmer and Audio Cutter:
The First and only app in the android market that includes both audio cutter, mp3 cutter & video trimmer together and that too FREE!! Audio Cutter & Video Trimmer is an complete multimedia application available in android market as it also give features of ringtone creator.

Get this app @ https://play.google.com/store/apps/details?id=com.galaxy.audiovideomanager

Frame Shot Video Image Capture:

Get ready to grab your most memorable images from recorded videos. Yes guys you all can do this magical trick through Frame Shot Video Image Capture. It’s very unique and best one application for your android phone.

Get this app @ https://play.google.com/store/apps/details?id=com.fundoo.videoeditor.framegrabber

Collage Creator: Photo Art Lab:

Stitch your pics and instantly create funky picture collages in a variety of shapes in just few minutes. Take your Facebook, Instagram, phone gallery photos or click through your mobile camera and turn them into crazy collage pictures with variety of magical effects that too FREE!

Get this app @ https://play.google.com/store/apps/details?id=com.galaxysoft.mixpics.photogrid