TEXARKANASAURUS
At the time of writing this, I've only got one app on here. I made it as part of a larger app, so expect more to show up eventually. And just to cover my bases, if you've arrived here and there are dozens of apps, I apologize for not having edited this description.
These will link to their GitHub project sites so you can check them out before they're ready for release, if you're so inclined.
I was watching a baby try to play with a fully featured drawing app, and they kept zooming in and out and panning way outside of the drawable area. Kids, am I right? Anyway, I made a toddler-proof app, and then got a little carried away adding more features into a debug menu anyway. I'm currently working on moving those features over, so layers, color, and opacity can be manipulated without a menu.
The same baby then used this app to draw the picture here. If you squint, it kind of looks like a grim reaper crossing black velvet hills. Spooky!
But seriously, hopefully this will help some parents out there make a memorable keepsake once it's released to the app store. For now, though, the code's available under a GPL 3.0 license. It will be completely free, with no ads, because ads on kids' apps can be mildly infuriating. At best.