Privacy Policy

Last updated September 17, 2026

Marrow ("we," "us") is a recipe-sharing app. This policy explains what information we collect when you use it, why, and what control you have over it. We currently operate in the United States only.

What we collect

  • Account info: your email address and password (stored securely, hashed — we never see or store it in plain text) and the display name you choose.
  • Profile info: anything you optionally add to your profile — a bio, an avatar photo.
  • Content you post: dishes, recipes, ingredients, steps, notes, and photos you upload; comments and reactions you leave; ratings you give.
  • Social activity: who you follow, who you've blocked, recipe requests you send or receive.
  • Notifications: if you turn on push notifications, we store the technical identifier needed to deliver them to your device — nothing about the content of a notification is stored beyond what's needed to send it.

We don't collect payment information — Marrow is free.

How we use it

To run the app: showing your posts to the right audience based on your own privacy setting for each recipe, letting people you interact with see your name and content, sending notifications you've opted into, and keeping the community safe (see Moderation below).

Third parties we use

  • Supabase hosts our database, authentication, and file storage — this is standard infrastructure, not a party we share your data with for their own use.
  • Google's Gemini API is used in several places to make the app work: automatically screening new posts for content that violates our guidelines, reading a recipe from a photo you take of it, extracting recipe details when you paste or link a recipe from elsewhere, generating a recipe or estimating its nutrition when you ask for one, and adjusting a recipe when you ask for a remix. This means content you submit for these features — including a photo of a recipe you're importing — may be processed by Google's AI systems for these specific purposes.

We do not sell your data to anyone, for any reason.

What other people can see

Any recipe you mark public is visible to everyone using the app. A recipe you mark private is visible only to you, until you approve someone's request to see it — you decide who, on a request-by-request basis. Your display name, profile, and public posts are visible to other users; your email address is never shown to anyone else.

Moderation

New posts are automatically screened for content that violates our guidelines. Users can report a post or block another user; reported content that crosses a threshold is temporarily hidden pending review. This is how we keep the app safe for everyone.

Your choices

You can edit or delete any of your own content at any time. You can delete your entire account from Settings on your profile — this permanently removes your account, your posts, your photos, and everything connected to them, right away, and can't be undone.

Children's privacy

Marrow is not directed at children under 13, and we don't knowingly collect information from them.

Changes to this policy

If this policy changes in a meaningful way, we'll update the date at the top of this page.

Contact

Questions about this policy? Reach us at Support.