Academics
DeduceQuest
Deduction puzzles and peg-game code-cracking for tweens — narrow the answer with logic grids, cross-referencing, and proof by contradiction. You never just guess; you narrow.
▶ 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 Deducia
#4f46a3 Characters who teach
Meet the cast
Cogent
Constructing explanations: telling deductive apart from inductive reasoning
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Contra
Proof by contradiction: assume the opposite and watch it break
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Nona
Nonograms: filling a hidden picture from number clues, cell by cell
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Odds
Probabilistic reasoning: choosing well when you cannot be certain
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Reeve
Cross-referencing: corroborating clues against each other
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Rulewright
Guess-the-rule induction: form a hypothesis, then test it
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Tablo
Logic-grid deduction: eliminating possibilities in a grid
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Vary
Controlling variables: changing one thing at a time
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Whittle
Code-narrowing: you never hunt for the answer, you narrow toward it
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Browse all chapters → · What's distributed-narrative methodology? →
What's inside
Learning goal
Deduction puzzles and peg-game code-cracking for tweens — narrow the answer with logic grids, cross-referencing, and proof by contradiction. You never just guess; you narrow.
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 Deducia — on-device AI, no data leaves the device.
How DeduceQuest 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
DeduceQuest 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
DeduceQuest 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
