math
RungPals
Same call, your choice. A number comes out of the see-through bag — which rung of your ladder does it go on? Everyone gets the same numbers, so your ladder is your own thinking. Build a ladder that climbs all the way.
▶ Play it nowBuilt for sittings of about 15 minutes on the screen. That is our design budget, not a measurement.
#2E6B3F Distributed-narrative cast
Meet the cast
Inch the snail climbs one rung each time your run grows.
Inch
A snail who climbs one rung every time your ladder's run grows longer
Tilly
Slides each tile into its slot and asks: is there room above it?
Lotti
Looks into the see-through bag and counts what is still left
Ruma
Knows where the middle numbers go — the middle of the line, the middle of the ladder
What's inside
Learning goal
Same call, your choice. A number comes out of the see-through bag — which rung of your ladder does it go on? Everyone gets the same numbers, so your ladder is your own thinking. Build a ladder that climbs all the way.
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 Inch — on-device AI, no data leaves the device.
How RungPals 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
RungPals 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
RungPals 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