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CentralForge

You are the central bank. Set one lever — the policy rate — and steer inflation and jobs, but everything you do arrives with a lag. Hike to cool prices and inflation barely moves for a year; hold too long and you over-tighten into a recession; face a supply shock and there is no clean move at all. Predict the economy, then run it yourself. All exact, all on your device. Ages 15–18.

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In planning Swift 6 · SwiftUI · FoundationModels Math / economics — model how a central bank's single lever (the policy rate) steers inflation and unemployment through aggregate demand and a Phillips curve, and why the effect arrives with a lag Quantitative reasoning — compute an economy's path year by year under a held rate, a Taylor-rule prescription, and a supply shock; explain the inflation–unemployment tradeoff and over-tightening Hero color: #2f7d84
Engagement: Modes pending

Distributed-narrative cast

Meet the cast

CentralForge is text-forward (R-OLDER-TEEN-DN-ADAPTED, ages 15–18) — no illustrated cast; the 'characters' are the pieces of a macro model. You set one lever, the policy rate. Above the neutral rate it cools the economy: spending slows, unemployment rises, and — a year or two later — inflation eases. That delay is the transmission lag, and it is why the job is hard: a hike barely moves inflation at first, so waiting for it to visibly fall over-tightens into a recession. A supply shock raises inflation and unemployment at once (stagflation), leaving the one lever to trade one problem for the other. Every value is exact arithmetic computed on-device. Illustrated portraits/chapters/audio are N/A for the older-teen band, not a follow-on.

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The policy rate

Your one lever — above the neutral rate it cools the economy and raises unemployment, below it heats the economy

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The lag

The delay before a rate change reaches inflation; unemployment moves this year, inflation only responds a year or two later

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The Phillips curve

Slack — unemployment above its natural rate — pulls inflation down; a tight labour market pushes it up

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The supply shock

Raises inflation and unemployment together (stagflation), so the rate can only trade one problem for the other

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The Taylor rule

A rule of thumb: lean the rate above neutral in proportion to how far inflation runs above target

What's distributed-narrative methodology? →

What's inside

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Learning goal

You are the central bank. Set one lever — the policy rate — and steer inflation and jobs, but everything you do arrives with a lag. Hike to cool prices and inflation barely moves for a year; hold too long and you over-tighten into a recession; face a supply shock and there is no clean move at all. Predict the economy, then run it yourself. All exact, all on your device. Ages 15–18.

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Question kits

16 curriculum-aligned kits × 25 questions = 400 questions per app, mapped to recognized standards.

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On-device AI mentor

FoundationModels-powered hints, feedback, and adaptive difficulty — all running locally.

How CentralForge 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
  • ✅ COPPA compliant under the 2026 FTC amendments
  • ✅ Parental controls + session limits + content filters built in

Full parent privacy guide →

Built with ForgeKit

CentralForge 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

CentralForge 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

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