Animate – iPad app for raster and vector animation by Canvas Software
canvassoftware.org
canvassoftware.org
That's really neat! But you may want to scale your pricing with your ambitions. That's very cheap, and it will be much harder to increase single-purchase pricing if you start at 4.99$. Totally unrequested advice, but maybe a 4.99$ "essentials" version that acts like a flipbook, and a 49.99$ "pro" or "full" version that includes future features you might add down the road, like more tweenable properties or IK bones.
Really nice job on the app so far! I also really like your AI use statement. I'll keep Animate in mind when I need something like this!