Academics
CorpusForge
A corpus-linguistics word game for ages 15–18: you set the tile bag. Sort each language’s letters, graphemes, and words by how often they really appear — the rare ones are worth the most — and discover Zipf’s law, why a tile isn’t a byte (Vietnamese NG is one unit), and why every language needs its own bag. The bag you build is the real data our word games run on. On-device; nothing leaves your device.
#0E7490 Distributed-narrative cast
Meet the cast
CorpusForge's cast are text-forward guides (ages 15–18, no illustrated storybook): Freqa counts how often each unit appears, Zeta shows how a few units do most of the work, Grapha insists a tile is a unit of the writing system (NG is one), and Rara weighs the rare, late-learned units that earn the most.
Freqa
(Guide) frequency — count how often each unit appears; that sets everything
Zeta
The long tail — a few units do most of the work, the rest are rare (Zipf's law)
Grapha
The grapheme — a tile is a unit of the language's own script (NG, CH, щ), never a byte
Rara
Rarity — the rare and late-learned units carry the most points and the most meaning
What's inside
Learning goal
A corpus-linguistics word game for ages 15–18: you set the tile bag. Sort each language’s letters, graphemes, and words by how often they really appear — the rare ones are worth the most — and discover Zipf’s law, why a tile isn’t a byte (Vietnamese NG is one unit), and why every language needs its own bag. The bag you build is the real data our word games run on. 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 Freqa — on-device AI, no data leaves the device.
How CorpusForge 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
CorpusForge 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
CorpusForge 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