STEM
Who Steps Up?
Today's Call: five mixed problems, each with no label. Before you solve one, choose who to call: Tock for a steady beat, Inchy for the same unit end to end, Stax to stack and compare. Choosing the method is part of the answer. Ages 6–8.
▶ Play it nowBuilt for sittings of about 15 minutes on the screen. That is our design budget, not a measurement.
#0f2645 Distributed-narrative cast
Meet the cast
Who Steps Up? has two friends who ask before they measure. Hollerby asks who steps up, and Pennywhistle learns to look before she calls.
Hollerby
(Host, a goose) - calls out each problem and asks who steps up before anyone starts
Pennywhistle
A kitten - used to call the first helper she saw, and now looks at the problem first
What's inside
Learning goal
Today's Call: five mixed problems, each with no label. Before you solve one, choose who to call: Tock for a steady beat, Inchy for the same unit end to end, Stax to stack and compare. Choosing the method is part of the answer. Ages 6–8.
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.
How Who Steps Up? 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
Who Steps Up? 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
Who Steps Up? 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