Academics
HollowTots
Peekaboo grows up. Find the Moonstone Flitter the moth hid under a den, then hide it yourself while she looks. Decide which valley animal is bigger, and laugh when tiny Puck tickles Ursa the bear home. Then play Hush, the whole hide-and-find game in miniature. Made for a grown-up and a child together; no reading, no score. Ages 3-5.
Built for sittings of about 10 minutes on the screen. That is our design budget, not a measurement.
#6A4C93 Distributed-narrative cast
Meet the cast
In the Hollowmere Valley, Flitter the moth hides the Moonstone and lets you hide it too. Ursa the bear is the biggest animal, and tiny Puck the mouse is the one who can tickle her home if he gets there first. Flitter shows rather than asks: she hides, she seeks, she gets it wrong, and she laughs.
Flitter
(Mentor, a soft moth) - hides the Moonstone, seeks it, sometimes guesses wrong, and laughs
Ursa
A big bear - the biggest animal in the valley; bigger tags smaller
Puck
A tiny mouse - the smallest, but he tickles Ursa home when he gets there first
What's inside
Learning goal
Peekaboo grows up. Find the Moonstone Flitter the moth hid under a den, then hide it yourself while she looks. Decide which valley animal is bigger, and laugh when tiny Puck tickles Ursa the bear home. Then play Hush, the whole hide-and-find game in miniature. Made for a grown-up and a child together; no reading, no score. Ages 3-5.
Question kits
16 curriculum-aligned kits × 25 questions = 400 questions per app, mapped to recognized standards.
On-device AI mentor
FoundationModels-powered hints, feedback, and adaptive difficulty — all running locally.
Mentored by Flitter — on-device AI, no data leaves the device.
How HollowTots handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ No ads, no in-app purchases — you pay once
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ Parental controls + session limits + content filters built in
HollowTots runs on ForgeKit — the open-source Swift Package Manager framework that powers every Spark & Anvil app. ForgeKit ensures consistent accessibility, COPPA compliance, and design language across the portfolio, so your kid's progress and preferences feel coherent across every app they touch.
Coming to the App Store
HollowTots is in active development. Email us to hear when it ships — no marketing, no spam, just a one-shot launch announcement.
Email me at launch