Write notes, naturally.
Use markdown in your editor of choice. Obsidian, VS Code, or plain files. Atomus works with what you already use.

A local-first space for what you want to remember, with spaced repetition shaped around how you actually forget.
Atomus brings each atom back right before you'd forget it.
From writing to remembering, Atomus fits into the flow you already have.
Use markdown in your editor of choice. Obsidian, VS Code, or plain files. Atomus works with what you already use.

Questions, definitions, and key facts become tiny review cards. Automatically, quietly, as you write.
Tiny reviews appear at the right moment. Answer in seconds and get back to what you were doing.
A review appears when it matters, you answer in seconds, and you are back to what you were doing. No app switching, no break in focus.
Retention curves, streaks, and per-topic health. Atomus shows what sticks, what is fading, and where to focus next.
Turn any line into atoms and ask questions about your notes. Bring your own OpenAI or Anthropic key, or run a model on your Mac with Ollama. Everything else in Atomus works without AI.
No import, no lock-in, no cloud migration. Atomus reads your existing notes and stays out of your way.



Scroll through a typical day with Atomus. Write a note, turn it into atoms, and review from the notch while your other apps stay open.
No subscription. No sign-up. Pay once and every version you get keeps working on your Mac. A year of updates is included; renewing is optional.
Yours to keep. 1 year of updates included.
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