Privacy Policy
Muscular is a free anatomy reference by AnatomyWeasel. You can browse the encyclopedia, lessons, and quizzes without an account. This page explains what happens to your information if you do create one, and which outside services the site relies on.
What we collect
- Account details — if you sign up, your email address and a password. Your password is stored encrypted by our authentication provider (Supabase); we never see or store it ourselves.
- Learning progress — which muscles you've marked as learned and your quiz stats. This is kept in your browser, and if you're signed in it's also synced to your account so it follows you across devices.
- Basic technical data — like most websites, our host records standard request information (such as your IP address and browser type) in server logs to keep the site running and secure.
We do not currently use advertising trackers or third-party analytics, and we do not sell your information to anyone.
How we use it
- To create and secure your account, and to sign you in.
- To send account emails you'd expect — email confirmation and password resets. We don't send marketing email.
- To save and sync your learning progress.
- To operate, maintain, and improve the site.
Services we rely on
Muscular uses a few trusted third parties. When they serve part of the site to you, they may receive basic information such as your IP address:
- Supabase — accounts, sign-in, and the database that stores your profile and progress.
- Netlify — website hosting.
- Google Fonts and jsDelivr — deliver the fonts and code libraries the pages need to load.
- Stripe — if and when paid subscriptions are offered, payments are handled directly by Stripe. Your card details go to Stripe and are never stored by us.
Cookies & local storage
We don't use advertising or tracking cookies. To keep you signed in and to remember your progress, the site stores a small amount of data in your browser's local storage (including your sign-in token). Clearing your browser data removes it.
Keeping and deleting your data
We keep your account information for as long as your account exists. You can use the site without an account at any time, and you can ask us to delete your account and associated data by emailing the address below. You may also request a copy of the information associated with your account.
Children
Muscular isn't directed at children under 13, and we don't knowingly collect information from them. If you believe a child has provided us information, contact us and we'll remove it.
Where data is processed
Our providers may store and process data in the United States. By using the site you understand your information may be handled there. Depending on where you live, you may have rights to access, correct, or delete your information — contact us to exercise them.
Changes to this policy
If this policy changes, we'll update the date at the top of this page. Significant changes may be highlighted on the site.
Contact
Questions about privacy, or want your data deleted? Email anatomyweasel@gmail.com.