Sketchframes

Sketchframes is a free 2d animation software that handles animation studies and reviewing, 2d full animation production including storyboarding and animatics. Sketchframes was originally a proprietary animation software used by Animation Apostles, but is now made free for all and fully public. 
Use now at www.sketchframes.com 
You can support us at https://ko-fi.com/animationapostles