Meet Luna — your personal AI health coach.
Luna lives inside Heaven Health. She listens for sixty seconds in the morning, writes your day around your biology, tracks your Heaven Score quietly through the week, and remembers what works for you. Free on iOS and Android.
Who Luna is
Luna is the personal AI health coach inside the Heaven Health app. She is the voice you wake up to, the one who explains the bloodwork, the one who notices when your sleep score has been drifting and gently asks if it might be the late coffees. She is conversational, warm, and direct — closer to a thoughtful friend with a deep library than a clinical app.
Luna is not a doctor, and she will be the first to tell you so. She does not diagnose, treat, prescribe or cure anything. What she does, every day, is help you take the next reasonable step toward the version of yourself you said you wanted to be.
How the morning ritual works
The morning ritual is the heart of Luna's day. You open the app, tap the orb, and she asks three questions:
- How did you sleep? A number, a word, a sigh — she takes whatever you give her.
- How is your energy? Heavy, light, scattered, sharp — there is no right answer.
- What is on your mind? A meeting, a knee that's been niggling, the fact you forgot to eat dinner — she keeps it all.
About sixty seconds. You can speak to her or tap through. From those three signals — plus your sleep data from Apple Health or Google Fit, your most recent bloodwork if you've added any, and the goals you set when you joined — Luna writes your day. Supplements with the right meals. Movement at the right hour. A breath practice if your HRV is low. A walk if your stress is high. A thirty-minute focus block before lunch if you said clarity matters today.
Every item on the plan tells you the why. Not "take 200mg magnesium." Instead: "Magnesium glycinate at 8pm — your sleep score dropped twelve points last week and your last panel showed your magnesium at the low end of the range." That is the difference between an app and a coach.
Luna is a wellness coach, not a clinician. If anything she says contradicts advice from your doctor, the doctor wins. If anything in your bloodwork or in your body worries you, see a professional. Luna's job is to help you live better between those visits, not to replace them.
What Luna remembers
A coach who forgets is not really a coach. Luna remembers — privately, encrypted, only for you — the things that make her useful tomorrow:
- Your goals. The three you chose: stop the aging, reverse the aging, live to a hundred and twenty. Or your version of those.
- Your bloodwork. Every panel you've photographed and uploaded, every marker, every trend across months.
- Your patterns. The protein on training days that lifts your energy. The wine that drops your sleep score. The walk that always pulls your mood up.
- Your context. The job, the kids, the time zone, the fact that Tuesdays are brutal.
- Your preferences. Vegan, halal, fasting, no caffeine after noon. Once is enough.
Luna's memory is private to you. It is stored encrypted, never sold, never shared with advertisers. You can read what she has remembered at any time from the Memory tab, edit anything, or delete every byte from inside the app in two taps.
The Heaven Score, watched gently
While you go about your day, Luna is quietly maintaining one number — your Heaven Score — across five domains: sleep, stress, nutrition, movement, recovery. Zero to one hundred. It moves daily. She does not nag. She mentions it on the days it has shifted enough to matter, and she suggests a single thing you could try tomorrow.
If your score climbs, Luna notices and tells you why. If it drops, she asks one question and offers one adjustment. That is the cadence — observation, question, adjustment. The opposite of dashboard exhaustion.
The bloodwork translator
Once a year, twice a year, every quarter — when you get bloodwork done, snap a photo of the panel inside the Heaven Health app. Luna reads it. She translates every marker into plain English: what ApoB is, what your HbA1c is doing, why your ferritin matters more than you thought.
Then she designs a thirty-day response plan. Not "consult your doctor about your high LDL" but "your ApoB came in at 105 mg/dL — the literature suggests sub-80 is where the longevity data points; here are four food and movement levers that move it, and here is what to ask your doctor on your next visit." The full deep-dive on this lives on the blood test AI page.
What Luna is not
This is important and we are loud about it.
- Not a doctor. Luna does not diagnose, treat, cure or prescribe.
- Not a symptom checker. If you are unwell, see a clinician — Luna is for the well-but-curious, the longevity-minded, the person trying to live better in a body they like.
- Not a wearable. She reads your Apple Health and Google Fit, she does not replace them.
- Not a meditation app. She'll suggest breath when you need it, but she is not Calm.
- Not a calorie counter. She thinks about food in terms of what it does to your biology, not what it weighs.
- Not a salesman. Luna does not sell you supplements. She suggests categories, lets you decide, and does not earn from the recommendation.
Luna's tone
If you have used a fitness app that yells at you, or a wellness app that talks like a Pinterest mood board, Luna is the opposite of both. She is calm, warm, present, second-person. She will say "you" not "users." She does not patronise. She does not catastrophise. She uses short sentences and the occasional careful joke. When the science is uncertain, she says so. When she does not know, she asks.
"Your sleep score dropped six points since Sunday. I think it's the 9pm coffee — you mentioned the new client deadline. Try cutting caffeine at 2pm tomorrow and tell me how Thursday morning lands."
That is the tone. The full Heaven Health team designed her voice carefully — there are no hype words, no growth-hack copy, no overclaim. She is the assistant we wished existed.
The research engine behind every plan
Luna is unusual among health assistants because she has a research engine working behind her, twenty-four hours a day. The engine — built by the Heaven Research Labs team — reads peer-reviewed Geroscience papers from PubMed, analyses ~4,000 abstracts daily across 90 topics, generates hypotheses, and produces protocols. So far it has analysed 13,367 papers, produced 315 hypotheses and 82 protocols. Read more on the longevity pillar page or the about page.
What this means for you, in practice: when Luna suggests something, it is grounded in actual literature, not in a wellness influencer's last newsletter. Every protocol cites its sources. Every claim is footnoted. When the evidence is thin or contested, she says so.
Voice or text — your choice
Luna works in voice or text, whichever feels right. Voice for the mornings when typing feels like work. Text for the meetings where you cannot talk out loud. She remembers across both. She speaks in your language — twenty supported — and switches if you do.
Privacy, simply
Your conversations with Luna are private to you. They are encrypted in transit and at rest. They are not sold, not used to train third-party advertising models, not shared with anyone unless you explicitly export them (for example, the doctor-ready PDF report Luna can produce on request). You can delete your entire account, including every byte of Luna's memory, from inside the app in two taps. That is the entire policy. The full version is in the privacy notice.
Why we built Luna
The four worlds that should have collapsed into one — AI assistants, longevity science, nutrition, movement — are fragmented. Function Health does bloodwork. Whoop does recovery. Calm does mindfulness. MyFitnessPal does calories. Ada does symptoms. None of them know your name. None of them remember your last conversation. None of them write your day.
Luna does. That gap — a single coach who knows the whole picture — is the gap she was built to close.
Common questions about Luna
Is Luna an AI doctor?
No. Luna is a coach, not a doctor. She explains, plans and encourages. She does not diagnose, treat, prescribe or cure. If you have a medical concern, see a licensed clinician — Luna is built to help you live well between those visits, not to replace them.
How is Luna different from ChatGPT or Claude?
Luna is purpose-built for daily personal health. She has the memory of your goals, your bloodwork, your sleep history. She has access to the Heaven Research Labs longevity engine. She is tuned to refuse advice that could harm you and to defer to clinicians when you need one. General-purpose chatbots are useful — Luna is specialised.
What data does Luna need from me?
Three things at the start: your goals, your sleep data (via Apple Health or Google Fit if you choose to connect), and — optionally — a photo of any recent bloodwork. Everything else is added through normal conversation, on your schedule.
Will Luna nag me?
No. Luna sends one morning ritual notification at the time you set, and an evening reflection prompt if you opt in. Nothing else, unless you ask her to. Notification frequency is fully in your control.
Does Luna work offline?
Some features do — your plan view, your past scores, your memory log. The conversational pieces need a connection because Luna processes your message through the research engine. Plan ahead before flights.
What if Luna gets something wrong?
Tell her. Inside the app there is a feedback button on every Luna message. We read every single one and the model improves with the corrections. If Luna says something that contradicts your doctor, your doctor is right.
Open Luna and start your day.
Free on iOS, Android, macOS, iPad and Vision OS. Available in 20 languages. No card needed.