STEM
SyncForge
How a shared world stays shared (ages 15–18): set the tick rate, latency, and whether you use interpolation or rollback — then predict what two players see across 200ms of lag before the engine runs both screens side by side. See why cheaters exist, why the server must be the authority, and try the unfixable exercise: keep a world consistent with no server at all. The systems layer of computer science. Deterministic, on-device; text-forward.
#0369a1 Distributed-narrative cast
Meet the cast
SyncForge's adapted-DN-S cast (ages 15–18, realistic distributed-systems personas — no mascots, per R-OLDER-TEEN-DN-ADAPTED) each embody one idea in real-time sync; mentor Relay asks how two screens ever agree across the wire.
Relay
(Mentor) — asks how two screens ever agree across the wire
Ticks
the tick rate — how often the world updates; too slow feels laggy, too fast costs everything
Lag
latency — the travel time that makes each screen see a slightly different world
Serva
server authority — the one source of truth that stops a cheater rewriting the world
Rollo
rollback — replay the last moves when a late input arrives, so the world stays fair
What's inside
Learning goal
How a shared world stays shared (ages 15–18): set the tick rate, latency, and whether you use interpolation or rollback — then predict what two players see across 200ms of lag before the engine runs both screens side by side. See why cheaters exist, why the server must be the authority, and try the unfixable exercise: keep a world consistent with no server at all. The systems layer of computer science. Deterministic, on-device; text-forward.
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 Relay — on-device AI, no data leaves the device.
How SyncForge 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
SyncForge 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
SyncForge 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