STEM
CircuitForge
Build circuits on a virtual breadboard, watch electricity flow, code virtual robots, and learn the engineering behind every electronic device you use.
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.
#29B6F6 CircuitForge is an electronics workshop on your phone! Build circuits on a virtual breadboard, watch electricity flow through every wire, measure voltage with a virtual multimeter, and even program robots with block coding. Learn how every electronic device around you actually works.
What's inside
Breadboard Builder
Place components like batteries, LEDs, resistors, and switches on a virtual breadboard. Connect them with wires and flip the switch to see if your circuit works
Virtual Multimeter
Use the multimeter tool to measure voltage and current at any point in your circuit. This helps you understand what the electricity is doing and fix problems.
Code-a-Robot
Program a virtual robot using drag-and-drop code blocks. Tell it to move, turn, flash lights, and make sounds. Then watch it follow your instructions!
Engineering Challenges
Solve real-world puzzles like "Build a circuit that makes two LEDs blink in a pattern" or "Design an alarm system." Each challenge teaches a new electronics con
How CircuitForge 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
CircuitForge 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
CircuitForge 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