Understand Your Cycle.
Feel More Prepared.

A quiet, private space to observe your body's rhythms. FlowLuna combines high-fidelity tracking with gentle, AI-powered intelligence — designed for your most intimate health data.

Current Phase

Follicular

Next Period

In 17 Days

Day 12

of 28 days

Log · Day 12

2 tags

Try the live demo

A real, read-only FlowLuna account — 6 months of cycle data and unlimited Ellen AI chat. No signup required.

FlowLuna Pro

Upgrade your cycle tracking

Unlimited Ellen AI, advanced predictions, and doctor-ready reports.

Free

Basic cycle tracking

Current
$0
  • Period & fertility tracking
  • 3-month predictions
  • Up to 5 symptoms / day
  • Doctor-ready reports
  • Advanced insights

Pro

Everything in Free, plus more.

$69.99/year

≈ $5.83/month, billed yearly

  • Everything in Free
  • Unlimited Ellen AI
  • 30+ symptoms & moods
  • Doctor-ready reports
  • 6-month predictions

Card required. Cancel anytime before day 7.

A real, read-only FlowLuna account — 6 months of cycle data and unlimited Ellen AI chat. No signup required.

Common Questions

Your data is transmitted over TLS and stored with row-level security so only your signed-in account can read it. We never share it with advertisers, and you can delete everything from Settings at any time.

No. FlowLuna is a tracking and education tool. It is not a contraceptive and should never be used as one. Always speak with a clinician about contraception.

Yes. From the Report page you can generate a printable summary of your recent cycle history and symptom frequency to bring to your appointment.

Yes. FlowLuna adapts to your actual data — predictions evolve as you log, and the calendar shows ranges rather than rigid lines for irregular patterns.

Medical DisclaimerFlowLuna is a tracking and education tool. It is not a contraceptive, a diagnostic device, or a replacement for professional medical advice.