PRIVACY-FIRST · AI-POWERED · FOR EVERYONE

Your body keeps the data.
Lumi helps you read it.

Cycle and wellness tracking with an AI companion that learns your patterns — and a privacy architecture that means it's nobody's business but yours. Private by design. Never sold.

Join the waitlist Read the privacy architecture
Launching first in the US and Canada · iOS & Android · 18+
01 — Why LumiOne app, whole picture

Track everything. Understand yourself. Keep it private.

Periods, symptoms, mood, sleep, energy — one app instead of a fragmented stack, in Cycle mode or Wellness mode.

/ TRUST

Private by architecture

Privacy is the engineering spec, not the marketing copy — encrypted everywhere, anonymous by choice, never sold.

By design
/ COMPANION

Ask Lumi — talk or type

A warm, honest AI that cites your own logs, says "I'm not sure" when it isn't, and points you to a clinician when that's the right answer.

Free for everyone
/ PATTERNS

Your patterns, on your device

Computed on-device with honest confidence tags like "seen in 4 of your last 6 cycles." Observations, never diagnoses.

On-device
03 — JourneysPrograms that end on purpose

Wellness programs designed to graduate you.

Short, bounded journeys — Better sleep, Stress reset, Perimenopause companion — with a beginning, an end, and zero streaks. Three at launch, growing to eight.

  • One small thing a day — about three minutes, grounded in your own logs.
  • No streaks, no guilt. Pause, restart, or leave anytime.
  • They end — by design. We measure healthy disengagement as a win.
BETTER SLEEP · 14 DAYS
Day 1 · Why sleep drifts✓
Day 2 · Your sleep baseline✓
Day 3 · Caffeine timing✓
Day 4 · The wind-down windowtoday
…Day 14 · GraduationJun 21
04 — Care, when you want itConsent at every step
FROM PATTERN TO APPOINTMENT
  1. Lumi spots a pattern worth a conversation"Headaches recur at days 25–28, in 4 of 6 cycles."
  2. You build a Care summary — on your deviceYour words, your patterns, your questions.
  3. You choose exactly what a clinician seesScope by scope. Pseudonymous until you book.
  4. Every view is logged — and shown to youRevocable until you book.

When a pattern deserves a doctor, Lumi helps you bring it.

A Care summary turns months of logs into a one-page brief a clinician can use — shared as a PDF with your own doctor, or through vetted care partners, starting with Felix in Canada.

Rolling out after launch · v1.5
06 — PricingFree forever · Lumi+ optional

The core is free. Forever.

Free
$0 · forever
  • Cycle & wellness tracking, both modes
  • Ask Lumi — talk or type
  • On-device patterns & insight unlocks
  • Anonymous mode — no account, ever
Lumi+
$9.99 /mo · or $59.99/yr · 7-day trial
  • Ask Lumi+ — contextual AI grounded in your own data
  • Wellness journeys — 3 at launch, growing to 8
  • Multi-cycle & multi-week pattern detection
  • Premium themes — nine looks, one Lumi
COMING TO LUMI+
Annual health-pattern report · wearable integrations (Oura, Fitbit, Garmin)
02 — The promiseStated precisely
WHAT WE PROMISE — AND WHAT THE ARCHITECTURE ENFORCES

Privacy you don't have to take on faith.

01Encrypted everywhere

End-to-end in Anonymous mode — nothing leaves your device. Account data is encrypted in transit and at rest, with personal details kept separate from health logs.

02Anonymous mode

Use Lumi fully — tracking, AI chat, insights — without ever creating an account.

03We never sell your data

Not to advertisers, not to brokers, not to anyone. And if Lumi is ever acquired, you'll be told before any data moves — with time to export or delete everything first.

04Export & delete, anytime

Your data is yours. Take it with you or erase it completely — no questions, no dark patterns.

How the architecture enforces this →
05 — Side by sideFlo · Clue · Natural Cycles

The combination is the point.

Each rival does one thing well. Lumi's position is the whole: privacy architecture + AI companion + both modes, in one app.

CapabilityLumiFloClueNatural Cycles
Privacy-first by default●○◐○
Conversational AI assistant●◐○○
Anonymous mode (no account)●◐○○
Both cycle & general wellness●○○○
Holistic logging in one app●◐◐◐

Lumi

Privacy-first by default●
Conversational AI assistant●
Anonymous mode (no account)●
Both cycle & general wellness●
Holistic logging in one app●

Flo

Privacy-first by default○
Conversational AI assistant◐
Anonymous mode (no account)◐
Both cycle & general wellness○
Holistic logging in one app◐

Clue

Privacy-first by default◐
Conversational AI assistant○
Anonymous mode (no account)○
Both cycle & general wellness○
Holistic logging in one app◐

Natural Cycles

Privacy-first by default○
Conversational AI assistant○
Anonymous mode (no account)○
Both cycle & general wellness○
Holistic logging in one app◐
● full · ◐ partial · ○ not offered. Natural Cycles is FDA-cleared as contraception — a genuine strength on an axis Lumi doesn't offer.
07 — Join usUS + Canada first

Be first in line.

Launching first in the US and Canada. UK, Australia and New Zealand next. Join the waitlist and we'll email you once — when it's your turn.

That doesn't look like an email — mind checking it?
You're on the list. One email, when it's your turn. ✓
No marketing drip. Unsubscribe is one click. 18+.