Please note that not all of the software provided below is FREE. If known, the cost of the application/software is provided below.
Windows Movie Maker 12 http://windows.microsoft.com/en-us/windows-live/movie-maker#t1=overview
Magisto Video Editor & Maker https://play.google.com/store/apps/details?id=com.magisto&hl=en
Video Maker Movie Editor https://play.google.com/store/apps/details?id=com.media.moviestudio&hl=en
iMovie for Mac ($14.99) http://www.apple.com/mac/imovie/
iMovie for IOS ($4.99) http://www.apple.com/ios/imovie/
Video Editor https://itunes.apple.com/us/app/video-editor-free/id450722848?mt=8
Stop Motion Studio https://itunes.apple.com/gb/app/stop-motion-studio/id441651297?mt=8
Super 8 ($0.99) – https://itunes.apple.com/us/app/super-8/id435739918?mt=8
iMotion HD (Free but to share video via YouTube or email costs $0.99) – https://itunes.apple.com/us/app/imotion-hd/id421365625?mt=8
Video MaKer Pro – https://play.google.com/store/apps/details?id=yong.app.videoeditor
*** The applications and software provided above are by no means exhaustive but do provide a few good options to use for your campaign videos.