Academics
RailForge
Drive the cart to the ore — and prove it can be done. Read a little program (move, turn, “keep going while you can”), predict the route the cart takes across the track, then watch it drive. Walls block, the edge stops you, and a built-in solver guarantees every puzzle really is solvable and tells you the shortest program. Read-before-you-run navigation — the loops-and-logic of getting somewhere. A drive-the-code 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.
#2563eb Distributed-narrative cast
Meet the cast
RailForge's track crew each read one part of a cart program, so you can see the route before it runs.
Railwright
(The one you teach) - builds tracks before driving them — you teach her to drive every cell
Trackley
remembers which way the cart faces after a turn
Tunnel
knows a keep-going loop stops at the first thing in the way
Par
counts the cells and the repeats until they match
What's inside
Learning goal
Drive the cart to the ore — and prove it can be done. Read a little program (move, turn, “keep going while you can”), predict the route the cart takes across the track, then watch it drive. Walls block, the edge stops you, and a built-in solver guarantees every puzzle really is solvable and tells you the shortest program. Read-before-you-run navigation — the loops-and-logic of getting somewhere. A drive-the-code 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 RailForge 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
RailForge 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
RailForge 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