Works the way your memory does.
Reteum is a notebook for iPhone that takes things in, brings them back, finds them when you ask and shows how they connect. The AI runs on the phone, and your thoughts go no further than your own iCloud, end-to-end encrypted, if you choose.
Your senses take things in all day. Out of nowhere, something you'd forgotten comes back. You wonder what time this afternoon's meeting is, and you look it up. Before you fall asleep, the day runs past once more and the pieces connect.
Reteum was built around those four moments.
Take it all in, like your senses.
One box for everything. Write a line, say it out loud, add a few photos or a video, paste a link, attach a PDF.
- Voice notes and the words in videos become text, in the language you speak.
- Photos and videos keep the time and place they were taken.
- From a widget, the Lock Screen, Control Center or Siri: "Add a thought to Reteum."
Old thoughts come back.
Each time you open Reteum, something you saved before is waiting at the top, the way a memory surfaces on its own. Keep it, add to it, or let it go with a swipe.
Drove Highway 1 down to Big Sur. Stopped at every turnout.
Search the way you remember.
Half a memory is enough. A place, a month, a feeling, or what was in the picture. An AI model on your iPhone searches by meaning, so you don't need the exact words.
- Find photos and videos by what they show.
- The words inside PDFs count, every page of them.
See how it all connects.
The Atlas sorts everything you save into subjects on its own, then links the thoughts that belong together. Open a subject and follow the lines, like going over the day before sleep.
Only you can read it.
Both AI models run on the phone
The text model that searches and sorts, and the image model that sees your photos, work on your iPhone, even in airplane mode.
No account, no server
There is nothing to sign up for and no Reteum server. No analytics, no ads, no tracking. We never see what you save.
Your iCloud, sealed
Turn on iCloud and your thoughts reach your other devices, end-to-end encrypted, so Apple cannot read them either. Or export everything as one zip file. Read the privacy policy.
Try it free for 7 days.
Then one yearly subscription, sold and managed by Apple. Cancel any time in your App Store settings.
- Everything: writing, voice, photos, links, files, search and the Atlas.
- Without a subscription you can still read your thoughts, open the Atlas and export.