STEM
CurioTots
A cabinet of curiosities for ages 3–5: open a drawer, find a treasure — a shell, a crystal, a feather, a beetle — and sort it. Is it shiny or dull? Hard or soft? Was it ever alive? Slow and calm; 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 Curie
#0f766e Characters who teach
Meet the cast
CurioTots's little cast each keep one drawer of the cabinet; Curie the curator loves every treasure and asks the first question of science: what do you notice about it?
Curie
the curator — opens every drawer and asks what you notice (observe, then sort)
Sparkle
The shiny drawer — crystals and polished shells that bounce the light
Squish
The soft drawer — a feather, a sponge: things that squish, not rocks
Sprout
The was-alive drawer — a shell, a pinecone: things that came from living things
What's inside
Learning goal
A cabinet of curiosities for ages 3–5: open a drawer, find a treasure — a shell, a crystal, a feather, a beetle — and sort it. Is it shiny or dull? Hard or soft? Was it ever alive? Slow and calm; on-device.
Mentored by Curie — no data leaves the device.
How CurioTots 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