How it works
From a voice note to what you know about someone
Rucksack does four things: it lets you capture a note in seconds, understands what you said, asks when it isn’t sure, and gives it back when you need it.
1. Capture, right after the conversation
Open Rucksack and tap to record. Talk the way you would tell a friend: who you met, what they told you, what matters. Most notes take thirty seconds to a minute. A single note can run up to five minutes, with a warning at four.
If you can’t talk, type instead. Typed notes go through exactly the same process.
No signal? Record anyway. The note is kept on your phone and uploaded when you’re back online, and you can see which notes are still waiting.
2. Understanding what you said
Rucksack transcribes the recording. You can speak German or English — the language is detected, not set in advance.
It then works out what the note is about. That means people, but also places and organisations, and the facts about each of them: where someone works, where they live, what they told you. Each note also gets a short summary — a headline and up to four points.
3. Asking instead of guessing
Names are where note-taking tools go wrong. You mention Anna, and you know two. A tool that silently picks one files a fact under the wrong person, and you won’t notice until it matters.
Rucksack only links a name to someone on its own when it is certain. When it isn’t — including near matches, like a short name against a full one — it asks: this person, a new person, or skip. Your answer is remembered, so the same name isn’t asked about again.
4. Getting it back
Every person, place and organisation has a page with the notes that mention them and the facts gathered from those notes.
Every fact links back to the recording it came from. Tap it and play what you actually said.
Search looks across people, notes and facts at once, and tolerates small differences in spelling.
5. On your phone
Rucksack is a web app you install to your home screen from the browser, so it opens like any other app. So far it has been verified on iPhone. The interface is in English.
What it doesn’t do yet
- No reminders.
- No relationships between people — who knows whom is not captured yet.
- No contact import, and no integrations with email, calendar or other tools.
- No sharing and no teams.
- It doesn’t record meetings. You talk to it afterwards — by design.
Rucksack is a closed beta. Here is what that means.
Frequently asked questions
How long should a note be?
Thirty seconds to a minute is typical. A single note can be up to five minutes long.
What if it mishears a name?
Speech recognition still gets unusual names wrong. Because every fact links to its recording, you can always hear what you actually said.
Which languages does Rucksack understand?
You can speak German or English, and the language is detected automatically. The app interface is in English.
Join the beta waitlist
Rucksack is in closed beta. Leave your email and we’ll write when there’s a place for you.