STEM
MohsForge
A mineral-identification lab for ages 9–14: an unknown specimen lands on the bench — run the real tests (hardness, streak, luster, heft, magnet, acid, UV, crystal shape) to narrow it down and name it, the way a museum curator does. On-device; nothing leaves your device.
#0f766e Distributed-narrative cast
Meet the cast
MohsForge's cast each embody one diagnostic test; curator Cora asks “what does the evidence rule out?” before you name a specimen — nobody names a mineral they can't narrow to one.
Cora
(Guide) the diagnostic key — run the tests in order and let each result cross minerals off the list
Mohs
Hardness — what scratches it? the Mohs scale, from a fingernail to steel
Lumen
Luster & streak — how light plays on it, and the true colour of its powder
Habit
Crystal system & break — the shape it grows in and whether it cleaves or fractures
Fizz
The chemistry — acid fizz for carbonates, the magnet, and the UV glow
What's inside
Learning goal
A mineral-identification lab for ages 9–14: an unknown specimen lands on the bench — run the real tests (hardness, streak, luster, heft, magnet, acid, UV, crystal shape) to narrow it down and name it, the way a museum curator does. On-device; nothing leaves your device.
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 Cora — on-device AI, no data leaves the device.
How MohsForge 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
MohsForge 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
MohsForge 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