Academics
KnockTots
The phone is a door. Copy the animals' knocks, then make up your family's secret knock: some quick, some slow. Only that knock opens the door. It is kept on this device. Then knock on a real door! Ages 3–5.
▶ Play it nowBuilt for sittings of about 10 minutes on the screen. That is our design budget, not a measurement.
#1f5f6b Distributed-narrative cast
Meet the cast
KnockTots's friends live behind doors. Rapsy knocks, Hearsy listens, Codewick keeps the family's knock safe, and Toby only opens for the right one.
Rapsy
(Hero and guide, a rabbit) - knocks a pattern of quick and slow knocks
Hearsy
A bat who listens - hears whether each gap was quick or slow
Codewick
A squirrel who keeps the code - remembers the family knock and tells nobody
Toby
A tortoise behind the door - opens it only for the knock that matches
What's inside
Learning goal
The phone is a door. Copy the animals' knocks, then make up your family's secret knock: some quick, some slow. Only that knock opens the door. It is kept on this device. Then knock on a real door! 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 Rapsy — on-device AI, no data leaves the device.
How KnockTots 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
KnockTots 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
KnockTots 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