The only thing
you need to remember.
Your passport, your spare-key spot, the wine you liked, the promise you made — kept by an agent that knocks first.
Point your iPhone camera at the code
Save anything in chat.
Type, paste, or speak. Numen reads it, structures it, files it, and gets out of your way.
- Speak, type, or pasteWhichever input mode is fastest in the moment. No app to open inside the app.
- Numen reads itWhat kind of memo, what title, what fields — figured out automatically.
- Filed for youNo folders, no tags, no decisions about where things go.
- 'Saved.' Nothing elseOne word back. No questions, no follow-ups unless you ask.
Then ask anything later.
Vague queries land. The thing you wrote nine months ago is one sentence away — no scrolling, no folders, no remembering where.
- Ask in plain wordsNo keyword guessing. Numen understands what you're trying to remember, even when you can't quite say it.
- Across any timeFrom last hour to last year. Recall doesn't decay; old memos surface as readily as fresh ones.
- Answer with contextNot just the raw bit you saved — Numen tells you when, where, and why you saved it.
- Source one tap awayEvery answer links back to the underlying memo, ready to open, edit, or build on.
It thinks ahead.
Numen schedules its own outreach — morning briefs, follow-ups on promises you made weeks ago, nudges when a saved memo becomes relevant again.
- Notifications, not noiseOnly when there's something worth knocking about. Quiet by default.
- Daily briefsMornings arrive with the day already sorted — meetings, errands, deadlines, ranked by what matters.
- Follow-ups on what you saidIf you told Numen you'd do something, it remembers — even when you forget.
- Right time, not save timeA memo resurfaces when its moment has come, not when you wrote it down.
Three weeks ago you told me you'd intro Sarah to Lior. He landed in London this morning — want me to draft it now?
Your morning: gym at 8, the apartment-follow-up call at 10:30, and the dentist still owes you a callback.
Five nights in Rome, June 15–20. Delta out of Portland, Hotel Locarno near Piazza del Popolo. Final prep this week.
- Jun 14 · 1:15 PMDepart PDX · Delta
- Jun 15 · 1:40 PMArrive Rome (FCO)
- Jun 15 · 3:00 PMCheck in · Hotel Locarno
- Jun 20 · 11:00 AMCheck out
- Pick up Ava's renewed passport (Thursday)
- Confirm the Colosseum tickets — print QRs
- Pack the adapter + Ava's water bottle
- Flight to Rome — PDX to FCO
- Hotel Locarno — Rome
- Rome — packing notes
- Rome — with Ava
- Pick up Ava's renewed passport
It all connects.
Ask one thing, get the whole picture. Numen pulls related memos into a single living view — your trip, your project, the next steps for someone you care about.
- Across kindsNotes, reminders, contacts, events, flights — all considered together. No filtering by type, no juggling apps.
- Time-awareItinerary and deadlines arrange themselves chronologically. What's first lands first.
- Action-awareOpen items become an inline checklist. Tick them off as you go and they update everywhere.
- Always currentChange any underlying memo and the synthesis re-renders. One view; one truth.
Private by design.
A second brain only works if you trust it with the things you wouldn't tell anyone else.
- Encrypted on your deviceYour secrets are encrypted before they ever leave you. The key never touches our servers.
- Visible only to youEvery memo Numen has stored is inspectable. Tap to reveal — or to delete forever.
- Yours to take with youExport everything as Markdown or JSON, anytime. Cancel and your archive comes with you.
- Never used to train AIYour memos stay yours. We don't feed them to models — ours or anyone else's.
••••••••••••••••People who'd already replaced six apps.
“I haven't dropped a follow-up in three weeks. The commitment tracker is the only feature I've used every single day.”
“Replaced six apps with one. The 'today' brief is what every productivity tool should have built years ago.”
“It's the first AI tool that doesn't feel like work. I just talk to it and things stay remembered.”
Questions, asked and answered.
The fears people have before signing up. We share them.
Where is my data stored?
On encrypted disk in EU and US regions, your choice. The encryption key is generated on your device and never leaves it — even Numen's servers can't read your memos.
Can I export everything?
Yes, anytime, on any plan. One click gives you a downloadable archive in Markdown or JSON, with attachments, structured exactly the way Numen sees them internally. No dark patterns, no waiting.
Does the AI provider see my private memos?
Only the snippets relevant to a given chat turn are sent to the model, and never stored on the provider's side. We use enterprise zero-retention agreements with Anthropic and OpenAI. Your secrets aren't training data.
What happens to my memos if I cancel?
They stay yours. After cancel you drop to the Free tier — your existing memos remain accessible (read-only past the 50-memo limit). You can export them, delete them, or pick up where you left off if you re-subscribe.
How is this different from a notes app?
A notes app stores. Numen remembers. The difference is recall: ask a vague question months later and Numen finds the answer, synthesises across memos, and shows you patterns over time. Notes apps make you do that work.
Isn't this just ChatGPT with memory?
ChatGPT remembers things you say to ChatGPT — inside one conversation product, walled off from the rest of your life. Numen is a typed memory system: notes, reminders, events, contacts, secrets — five kinds, each with its own structure. And Numen's agent reaches out to you on its own (Pulse) — morning briefs, follow-ups on promises you made weeks ago. ChatGPT waits until you remember to ask.
Is there a mobile app?
iOS and Android are in beta. The web app at numen.to works on phones today.
Start with what
you'd otherwise forget.
No credit card. Free plan to start. Set up in under a minute.
Numen, in your pocket.
Now on iOS. Android coming soon.
Not ready yet? We'll keep you posted.
One short email when Numen ships, and when something noteworthy changes. No spam, ever.