Questions, answered.

Nagi — full name Nagi & Me — is a warm AI mental health companion designed to help you track and understand your mental wellbeing. You can chat with Nagi daily — by text or voice — log your mood, complete a weekly wellbeing check-in, and keep a medication diary, all in one place.

Nagi works in your web browser and on Android and iOS, and no name or email is ever attached to your account.

No. Nagi is an educational wellbeing companion — not a therapist, doctor, clinical tool, or crisis service. She listens without judgment and helps you notice how you're doing, but she is no substitute for professional care.

If you're struggling, please speak to your doctor or a qualified professional. If you're in crisis, please use the crisis lines listed at the bottom of this page — Nagi is not a crisis service.

They're built for different jobs. ChatGPT is a general-purpose assistant — one minute it's writing code, the next it's planning a holiday. Nagi does one thing: mental health companionship. Every design decision follows from that.

Anonymous by design. A general chatbot ties your conversations to an account with your name and email on it. Nagi never asks who you are — your code is the only key, and there's no identity to attach your words to.

More than a chat window. Talking to Nagi sits alongside a mood diary, a weekly check-in score, a medication diary and a doctor report — so conversations become a picture of how you're actually doing over time, not a transcript that scrolls away.

Boundaries on purpose. Nagi won't diagnose you or comment on your medication, and a built-in crisis safety system steps aside to real human help the moment it's needed. General chatbots leave those judgement calls to chance.

Under the hood Nagi is powered by Claude — the same class of AI — but tuned, bounded and wrapped for one purpose. And your conversations are never used to train AI models.

Nagi is made by Lumetrix Labs Limited, a UK health technology company. The AI is powered by Claude (Anthropic).

Open app.nagiandme.app in any browser — no app store required — and start your free week. Instead of a username and password, the app gives you a Nagi code: a system-generated chain of words that becomes the only key to your account. No name, no email, no phone number.

Save your code somewhere safe (a password manager is ideal) — it's how you open your account on any device, and it can't be recovered if it's lost.

Three doors, one account. In the browser: open app.nagiandme.app — nothing to install, works anywhere in the world. On Android: Nagi is on Google Play in the UK, US, Canada, Australia and New Zealand. On iPhone: nearly there — the App Store version is in its final stages, and you can join the waitlist on the home page to get a single email on launch day.

Whichever you choose, your Nagi code opens the same account everywhere.

Yes. One Nagi code works everywhere — web, Android, and iOS. Getting a new phone, or moving between your laptop and your phone, is just a matter of entering your code. Your conversations, diary, and scores are all there waiting.

Yes — and here's the honest, precise version. When you subscribe on the web, two entirely separate systems come into existence. Your email lives with our payment processor, who knows it pays for a subscription — but can't see anything inside your account: no conversations, no diary, no scores. Nagi's own systems never hold your email at all; your account has no name on it and never did.

So no single system anywhere contains both who you are and what you've said — and we never join them. When your subscription ends, even the processor deletes your email. The full explanation is on the blog: How Nagi keeps your words unconnected to your name.

Nagi stores your mood logs, S8 scores, medication diary, chat history, and any optional profile information you choose to provide (age bracket, sex, diagnosis, region). No name or email address is required.

All data is stored on secure EU servers (Supabase, EU West region) and encrypted at rest and in transit. Lumetrix Labs complies fully with UK GDPR. For members in the US, we also publish a US Privacy Policy and a Consumer Health Data Privacy Policy.

Yes. Your conversations are stored securely and are only accessible to you. They are never used for advertising or shared with third parties. If you opted in to anonymised research, only aggregate patterns are used — never your individual messages.

No. Your personal data and conversations are never used to train AI models.

Your data belongs to you. Go to Settings → Export all my data to download a full JSON copy of everything Nagi holds. To leave entirely, go to Settings → Delete my account: your account and data are removed immediately, and any remaining copies (including backups) are purged within 30 days. This cannot be undone.

On the billing side, when your subscription ends our payment processor deletes the checkout email it held — so nothing about you is left behind on either system.

Nothing. Cancelling stops future billing — it doesn't touch your data. Your account simply moves to the free tier, and your conversations, diary, and scores stay exactly where they are, still opened only by your code. Your data is only ever deleted if you delete it yourself, from Settings → Delete my account.

One membership includes everything: chat with Nagi by text or voice, the mood diary, the weekly check-in (your S8 score), the medication diary, the doctor PDF report, and the members' library.

It costs £7.99/$9.99 a month, or £79.99/$99.99 a year — and every new membership starts with a 7-day free trial.

You get 7 days free with full access to everything. Your card is not charged until the trial ends, and our payment processor emails a reminder before that happens. Cancel at any time during the trial and you pay nothing at all.

If you let the trial run, your subscription starts automatically at the price you chose at sign-up — so it remains your responsibility to cancel in time if you don't wish to be charged.

Each billing period includes an allowance that works out at about 50 messages, starting fresh every period. Why "about"? Behind the scenes the allowance is actually measured in tokens — the units of work the AI does — and a long message simply takes more work than a short one. 50 is the honest average: brief check-ins stretch further, long letters use a little more.

If you need more, you can buy a top-up pack of extra messages at any time from the chat screen — the price is always shown before you confirm.

Chatting continuously — you say something, Nagi replies, you respond — 50 messages is roughly an hour of solid conversation. Very few people use it that way, though.

Most members chat a few messages at a time: a proper unload on a hard day, a quick check-in on an ordinary one. Spread like that, the allowance comfortably covers a month of regular talking — and top-up packs are there for the weeks that need more.

If you subscribed on the web: go to Settings → Manage subscription. This opens our payment processor's secure portal, where you can cancel in a couple of taps. If you subscribed through Google Play or the App Store, your subscription lives with the store instead — cancel from the store's subscriptions page on your device.

Either way, you keep full access until the end of the period you've already paid for, and your data stays safe on the free tier afterwards.

For subscriptions purchased on the web, email support@nagiandme.com and we'll do our best to put things right — nothing in our terms affects your statutory rights as a consumer. For subscriptions purchased through Google Play or the App Store, refunds are handled by Google or Apple under their own policies, so please request them directly through the store.

Each week, Nagi invites you to complete the Lumetrix S8 PROM — an 8-question self-report measure of your mental wellbeing over the past 7 days. It takes about 2 minutes and gives you a score from 0 to 28 with a severity band (Minimal to Severe), plus an anxiety flag.

Your S8 scores are tracked over time so you can see the shape of your weeks, and they're included in your doctor PDF report.

The report is an exportable summary of your S8 scores, mood trends, and medication log. You can share it with your doctor or care team to give them a picture of how you have been doing over time. It is clearly labelled as self-reported and does not constitute a clinical assessment.

You can log any medications you take, add a dose and time of day, and mark them as taken each day. You can also add a free-text side-effect note each day. Nagi will never comment on, question, or recommend any medication — this is strictly a personal diary only.

After logging your mood each day, Nagi shows a short evidence-based tip relevant to your mood state. Tips cover exercise, sleep, nutrition, social connection, and time outdoors. They are refreshed regularly so you see a variety.

Two ways to talk. Voice input: tap the microphone icon next to the message box to speak to Nagi instead of typing — your speech is transcribed and placed in the message box for you to review before sending.

Voice mode: turn it on in Settings and Nagi speaks her responses aloud in a warm, natural voice called Ria, for a hands-free conversation. You can switch either on or off at any time.

It's a deliberate choice, and it's mostly about privacy and control. The microphone opens only when you tap it, and closes the moment you finish — it is never live in the background. You always know exactly when you're being heard.

It also keeps you in charge of what's actually said. Your words are transcribed into the message box first, so you can read them, fix them, or think better of them before anything is sent. An always-open line would send everything — the ums, the interruptions, the housemate walking in.

And it's simply more accurate: a clean start and stop transcribes far better than an open microphone guessing where your sentence ends — in a kitchen, on a bus, with the TV on. Tap, say your piece, and Nagi answers.

The library grows every week. It includes the weekly guest Conversations — clinicians, researchers, and people who've lived it, talking honestly about what actually helps — plus short, practical tips videos, plain-English articles from the Nagi desk, and careful readings of mental-health stories in the news, caveats included.

Nagi has a built-in safety system. If crisis language is detected, the app immediately shows a full-screen page of crisis resources for your region. Nagi will not attempt to handle a crisis herself — real support, from real people, comes first.

We'll be straight with you: no. If you're still signed in on any device, open Nagi there and generate a fresh code, then save it somewhere safe. But if there's no signed-in device left, the account can't be reached again — not by you, and not by us.

That isn't an oversight; it's the design. An account we could recover from your email would be an account connected to your email, and that's exactly the connection Nagi refuses to build.

One reassurance: your billing is never trapped. The receipt email from our payment processor always includes a link to manage or cancel your subscription — code or no code.

Nagi is not a crisis service. If you're struggling right now: in the UK, call Samaritans free on 116 123, any time. In the US, call or text 988. Elsewhere, findahelpline.com lists free crisis lines for your country. If you or someone else is in immediate danger, call your local emergency number.

Email support@nagiandme.com and a human will get back to you. One thing worth knowing: because of the way Nagi is built, we can't look your account up from your email address — so tell us what's wrong in your own words and we'll take it from there.