Academics
StoneSong
Narrative-Driven Go for Tweens — life-and-death patterns as character archetypes (Patient Bamboo, Hungry Crane, Master Snail, Sparring Tiger). 9×9 → 13×13 → 19×19 board-scale progression. Stone mascot.
Meet your mentor
Every Spark & Anvil app has a friendly mentor character that demonstrates, praises, and patiently scaffolds learning. On-device AI personalizes the mentor's responses to your kid's progress — never connecting to a server, never collecting data.
#A07845 What's inside
Learning goal
Narrative-Driven Go for Tweens — life-and-death patterns as character archetypes (Patient Bamboo, Hungry Crane, Master Snail, Sparring Tiger). 9×9 → 13×13 → 19×19 board-scale progression. Stone mascot.
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 StoneSong 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
- ✅ COPPA compliant under the 2026 FTC amendments
- ✅ Parental controls + session limits + content filters built in
StoneSong 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
StoneSong 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