STEAM
CalcQuest
See the change — a precalculus→calculus game for ages 15–18. Predict, then drag a dynamically-linked representation (secant→tangent, Riemann strips, sliders on f) and justify — limits, derivatives, accumulation, and the fundamental theorem, geometry-first. Deterministic, on-device.
▶ Play it nowBuilt for sittings of about 25 minutes on the screen. That is our design budget, not a measurement.
#c2691c Characters who teach
Meet the cast
CalcQuest's characters are realistic people, not mascots, and each one stands for a single skill. Adaeze sets the challenge and helps your teen reflect.
Vela
Limits — approaching a value
Nayeli
Instantaneous rate of change / tangent slope
Rasmus
Accumulation / integral-as-sum
Thessaly
Function transformation
Ilse
Continuity & discontinuity
Marek
Asymptotic / end behavior
Leda
Optimization / extrema
Maren
Related rates
Soraya
Sequences & series / convergence
Adaeze
guides reflect-on-approach
What's inside
Learning goal
See the change — a precalculus→calculus game for ages 15–18. Predict, then drag a dynamically-linked representation (secant→tangent, Riemann strips, sliders on f) and justify — limits, derivatives, accumulation, and the fundamental theorem, geometry-first. Deterministic, on-device.
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 Adaeze — on-device AI, no data leaves the device.
How CalcQuest 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 CalcQuest on Spark & Whetstone, our free site for grown-ups: Why the Formula Works. They meet the formula; you see where it comes from.
CalcQuest 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
CalcQuest 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