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.
▶ Play it nowBuilt for sittings of about 20 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. On-device AI personalizes the mentor's responses to your kid's progress — never connecting to a server, never collecting data.
Mentored by Stone
#A07845 Characters who teach
Meet the cast
Patient Bamboo
Patience and slow growth — long-game positioning
Read chapter →
Hungry Crane
Capture instinct — taking what's available
Read chapter →
Master Snail
Deliberate strategy — every move considered
Read chapter →
Sparring Tiger
Aggressive contact — direct attacks and clashes
Read chapter →
Clever Gecko
Sacrifice — give up the small stone to win the bigger prize
Read chapter →
Nimble Cat
Good shape — the most work from the fewest stones
Read chapter →
Tidy Mouse
Endgame — the small edge-moves that quietly decide it
Read chapter →
Two-Eyed Owl
Life and two eyes — a group that cannot be captured
Read chapter →
Weaver Ant
Connection — linked stones are strong, cut stones weak
Read chapter →
Wide Heron
Territory and influence — claiming space by standing wide
Read chapter →
Browse all chapters → · What's distributed-narrative methodology? →
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 question kits, 400 questions in all, mapped to recognized standards.
On-device AI mentor
FoundationModels-powered hints, feedback, and adaptive difficulty — all running locally.
Mentored by Stone — on-device AI, no data leaves the device.
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
- ✅ 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
For you, the grown-up
The grown-up side of StoneSong on Spark & Whetstone, our free site for grown-ups: Go. The same board game, on a small board.
It also tells what StoneSong teaches in a short course of its own.
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
