VideoGrid is the best video app for creating collage videos and photos for social media like Facebook, Twitter, Instagram, YouTube thumbnails, and Pinterest collections.

-Create video collages.
-Create clear social media content with HD quality.

Feature Highlights:

-Combine photos and videos to make video collages, really easy to trim your videos!
-200+ different collage templates.
-7 videos and 9 photos per collage.
-Move, scale, rotate videos and photos.
-You can customize templates to suit your needs and exchange collage items with an easy drag & drop feature.
-Add music and background images.
-Support tons of popular ratios including Facebook Cover, Instagram Story, Twitter Header and Pinterest.