Academics
TraceForge
Read a short program, predict what it prints, then step through the real trace — line by line, watching each variable change — to see exactly how code runs in your head. A read-before-run coding lab. Ages 9–14.
▶ 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, praises, 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.
#0369a1 Distributed-narrative cast
Meet the cast
TraceForge's readers each keep one habit: you read a program first, and they show you how to trace it.
Scamper
(The one you teach) - runs a program the moment she sees it, before reading it — you teach her to trace first
Jotter
keeps a little table of every value, line by line
Fencepost
counts a loop's edges — the first turn and the last
Signpost
checks the condition at every if, then follows one path
What's inside
Learning goal
Read a short program, predict what it prints, then step through the real trace — line by line, watching each variable change — to see exactly how code runs in your head. A read-before-run coding lab. Ages 9–14.
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.
How TraceForge 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
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ Parental controls + session limits + content filters built in
TraceForge 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
TraceForge 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