STEM
UncookTots
A change-it-and-watch toy for ages 3–5: melt the ice, squash the ball, cook the egg — then ask, does it come back, or does it stay? Sort the changes into two calm bins. No-fail, on-device.
▶ Play it nowBuilt for sittings of about 10 minutes on the screen. That is our design budget, not a measurement.
Meet your mentor
Every Spark & Anvil app has a friendly mentor character that demonstrates, asks, and patiently scaffolds learning.
Mentored by Rewind
#b45309 Characters who teach
Meet the cast
UncookTots's little friends gather at the kitchen table. Poppet changes a thing — melts, squashes, cooks — and the friends ask the big question together: does it come back, or does it stay?
Rewind
changes a thing and asks — does it come back, or does it stay? (reversible vs irreversible)
Frost
Loves the things that come back — ice that melts and freezes again, a ball that springs back (reversible change)
Cinder
Watches the things that stay — a cooked egg, a popped balloon, toasted bread (irreversible change)
Sorty
Loves sorting each change into the right bin — comes back, or stays (classifying by reversibility)
What's inside
Learning goal
A change-it-and-watch toy for ages 3–5: melt the ice, squash the ball, cook the egg — then ask, does it come back, or does it stay? Sort the changes into two calm bins. No-fail, on-device.
Mentored by Rewind — no data leaves the device.
How UncookTots handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ Free — no ads, no in-app purchases
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ No chat with strangers — play-together rooms use a short code and preset emotes, never typed messages