Privacy & how it works

CircuitForge on the web is built the same way as our iOS apps: private by design.

Everything stays on this device

Your progress — best scores, XP and streak — is stored only in this browser (on-device storage). It is never sent anywhere. Clear your browser data and it's gone; nobody else can see it.

The breadboard, robot and gates run right here

The circuit solver, the block-code robot and the logic gates all run inside this page — pure on-device math and logic. There's no server, no simulator in the cloud, and no AI that sees what you build.

No accounts, no ads, no tracking

There is no sign-up and no login. There are no ads and no in-app purchases. There are no third-party trackers embedded in the app.

Built for ages 10–14

The 400 concept questions come straight from the CircuitForge iOS project and are aligned to NGSS engineering-design and computational-thinking standards. A hint appears only after a first try — you think it through first, and mistakes are treated as part of learning. Real circuits need an adult's help; this app is a simulation for learning.

Spark & Anvil is a 501(c)(3) public charity. Apps stay free forever. This page is a plain-language summary, not legal advice.

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