Pixaki
Pixaki organizes drawing, pixel, vector, font, or interface work into a 2D asset pipeline that can feed a game project.
Why use it
Before characters, icons, interfaces, or textures enter the engine, use it to finish sprite sheets and frame loops directly on a tablet.
Where it fits
Use art, animation, audio, levels, and narrative to make the game easy to read and its world convincing.
What to check
It is iPad-only, and edition export limits and project compatibility need checking; Projects must still verify export dimensions, color space, font embedding, and rights in third-party material.