Privacy & how it works

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

Everything stays on this device

Your progress — best scores and XP — 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.

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 9–14

The 400 Concepts questions come straight from the DeduceQuest iOS app. Every puzzle is framed as predict → observe → explain: you commit a guess first, and a wrong guess is treated as a clue that narrows the answer — never a scold. A hint appears only after a first try.

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

For parents & educators Site privacy policy