Pencil2D is an open-source, free, and cross-platform animation and drawing software. It is a vector-based program that supports both bitmap and vector illustrations. It is designed for both traditional animators and digital artists. It provides a simple, intuitive, and user-friendly interface that makes creating animations and drawings much easier. It is packed with a wide range of features and tools, including painting tools, brushes, layers, animation tools, and more. It also supports import and export of popular file formats, such as PNG, JPEG, BMP, and GIF. Pencil2D is an ideal choice for creating 2D animations, cartoons, storyboards, comics, and other illustrations.
Because it is almost the same.
Discontinued The software is not working. Activity passed on 2013/02/25. See http://www.torapp.info/en/s/changelog.html
Makes it so easy to animate if you know nothing about animation.
Discontinued The program seems to be no longer updated. The latest version, 3.3.6, released in October 2011, can still be downloaded from the official website.
Discontinued Project updated here: http://alternativeapp.info/software/pencil2d/