Grithm

Turn the videos you save into notes you’ll actually use.

Share a TikTok, Instagram Reel, YouTube video or X post to Grithm. Get clean, searchable notes with a link back to the creator. Your notes never disappear.

Coming soon to iPhone. We’ll only email you about the launch.

Example: a shared video becomes a note, with its source linked and your own words kept apart.

  • Share from any app

    Tap Share on a video or post, then pick Grithm. That’s the whole step.

  • Notes you can search

    Each one is clean text with a title and summary bullets, so you can find it again later.

  • Combine notes into one synthesis

    Pick a few notes on the same topic and Grithm brings them together into one.

Grithm, from algorithm: a second brain for the stuff your feed teaches you.

Your notes stay yours

Grithm’s AI summary and your own writing sit in separate, clearly marked parts of every note. The AI never overwrites what you wrote, and your notes never disappear.

Questions

What is Grithm?

An iPhone app that turns the videos and posts you save into notes. Share a TikTok, Instagram Reel, YouTube video or X post to Grithm and it writes a clean note with a title, summary bullets and a link back to the creator.

Which apps does it work with?

YouTube (including Shorts), TikTok, Instagram Reels and X. You can also make a note from screenshots or photos. Reddit isn’t supported yet.

How is a note different from a transcript?

A transcript is every word that was said. A Grithm note reads the transcript for you and keeps what matters: a title, the key points as bullets, and the source, so you can find it again in seconds.

Do you store the videos?

No. Grithm keeps your note and a link to the original. The videos stay with their creators.

Will the AI change what I write?

No. The AI summary and your own notes sit in separate, clearly marked parts of every note. The AI never overwrites what you wrote.

When does it launch, and what will it cost?

Grithm is being tested now and is coming to iPhone first. Pricing isn’t final yet. Join the waitlist and you’ll hear first, on launch day.

What do you do with my email?

We use it to confirm you’re on the list and to tell you when Grithm launches, and for nothing else. It’s never sold or shared for anyone else’s marketing. Privacy notice.

Is it on Android?

Not at launch. Grithm is coming to iPhone first.

Be first to try it.

Join the waitlist