Heads up: this browser isn't saving anything for this site, so progress and settings reset when you leave the page. Everything still works while you're here.
TraitForge on the web is built the same way as our iOS apps: private by design.
Your work 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.
How it works
In the DNA Lab, build the matching DNA strand using the base-pairing rule (A–T, G–C), transcribe DNA into mRNA and read a codon into its amino acid, or fix a single wrong base like a gene editor. In the Punnett Square Builder, fill the 2×2 cross grid to predict offspring and read the phenotype ratio — then flip it and work backwards from an offspring ratio to name the parents. Or run a Concepts kit: a short round of questions. A hint appears only after a first try, so you think it through first — and mistakes are treated as part of learning.
Built for ages 9–14
The 400 Concepts questions come straight from the TraitForge iOS design and are aligned to NGSS middle-school life-science standards for heredity and biotechnology (MS-LS3, MS-LS4). Everything works with the sound off and can be played entirely by keyboard.
Spark & Anvil is a non-profit, 501(c)(3) pending. Apps stay free forever. This page is a plain-language summary, not legal advice.