What can you use it for?
1. FRAME BY FRAME: (stop motion) animation. We started with the free keymesh addon and completely re-engineered ti to work with as many scenarios as we could. Most frame by frame animation addons will only work with meshes. We had a core requirement to work with curves, after that we made it work with things like text, metaballs , cameras, anything we could.
2. KEY MANAGEMENT: Add, remove, set, manipulate your keyframe spacing no matter what type of keys they are.
3. Complex single frame onion skin "Pin Frame": Our Pin Frame implementation will freeze frame selected objects and all their needed relationships for reference in other frames.
More to come in future updates, each release will pick a focus to develop. All customers can participate in the community, influence the future development, and get the updates for free. (This is commonly the Blender addon way)