As mentioned Muvizu is one of a kind within this field as it offered actual 3D scenes, characters, and props. You can also import your own 3D elements into a scene. Motion tracking is easy, 3D camera operation, lip-syncing, and many more features. You don't have to be an animator to build your first scene in minutes.
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
Plotagon - This app, Plotagon. is very fun. Creative and lets me express my ideas and all of my desiors!
Adobe Animate - Adobe Animate is a Flash, vector animation software.
MocapX - Facial Motion capture app Maya and iPhone. With the MocapX animator, you can easily use the iPhone camera to animate characters in real time directly in Maya. MocapX tools enable you to use any custom or production rig as well as any Maya feature.
Pencil2D - Pencil2D is an opensource animation/drawing software for Mac OS X, Windows, and Linux, based on old...
FaceRig - FaceRig is a program that aims to enable anyone with a webcam to digitally embody awesome...