Privacy

What we store

• Your email address, so you can sign back in and we can send sign-in links. We never sell it or share it.
• Your learning progress: which days you completed, how you rated your own understanding, your review schedule, and any notes you write.
• Your journey start date, so we know which day you are on.

What we do not store

• Payment details. There is nothing to pay for.
• Anything you type into Claude or ChatGPT. Those conversations happen on their services, not ours, so their privacy policies apply there.
• Advertising or cross-site tracking identifiers.

Analytics

We use Databuddy and Vercel Analytics, both cookie-free, to see which pages and tools are used, whether anything is erroring, and which of the linked resources people actually open. Neither sets cookies, follows you across other websites, or builds a profile of you.

Nothing you type is included. The tools run entirely in your browser, so the token, prompt, document or dependency file you paste into one never leaves your machine and cannot reach us or anybody else.

Where it lives

Progress is stored in a Postgres database hosted by Supabase, protected by row-level security so your rows are readable only by your account.

Your control

• Export: download everything we hold about you as a JSON file, any time, from your progress page.
• Delete: deleting your account removes your profile, progress, and email permanently.

Contact

Questions about any of this: reach the maintainer through the project's GitHub repository.