Privacy
Updated November 5, 2026
Twombly is run by Materic, Inc. This explains what we keep, why, and what you can do about it.
What we keep
- Your account: your name, email address, profile picture and account ID, from signing in with Google. We don't read your email, contacts, files or anything else in your Google account.
- Shared canvases: the files, frame positions, titles and comments on any canvas you share.
- Comments: the text and the name you gave. If you comment as a guest, we set a cookie so your comments stay yours on that browser.
- Usage: what happens on Twombly, such as signing in, sharing, opening a shared canvas, commenting and joining a huddle. It's recorded against your account or guest ID, never your name, email or what's on a canvas.
- Website visits: which page you opened, the site or campaign that sent you, your country, and whether you copied the agent prompt or pressed Sign in. It's counted with a code that changes every day, made from your IP address and browser, and no cookie is set.
- Service logs: basic request data such as IP address and browser, for keeping the service running and stopping abuse.
What stays on your computer
A canvas you haven't shared stays on your computer. Nothing is uploaded until you click Share. Signing in saves a private token on your computer so you stay signed in.
Once a day the Twombly tool sends a few counts, such as how many canvases and frames were made, with a random ID for the machine and the tool's version. When something breaks it sends an error report, with your home folder removed from any file path. Neither includes names, titles, files or comments. Run twombly usage off to stop both.
Shared links are public
Anyone with a shared link can see the canvas, its comments and who is present, and can join its huddle. Links are hard to guess and we ask search engines not to index them, but they aren't private. Don't share anything you wouldn't want the person you send it to, or anyone they send it to, to see.
Huddles
Huddle audio passes through our hosting provider to reach the other people in it. We don't record or store it.
Who else handles data
A hosting provider stores and serves Twombly and carries huddle audio, an analytics provider holds usage counts and error reports, and Google handles sign-in. We don't sell your data, use it for advertising, or use your canvases to train AI models.
Deleting things
Stop sharing a canvas, or delete it from your list, and its files and comments are deleted from our storage straight away. Backups and caches may take up to 30 days to clear. To delete your account, email us.
Contact
Email jaytel@materic.inc with any question, or to report a canvas that shouldn't be online.