Fertility-awareness temperature analysis
Log basal body temperature each morning. Harmonie finds the sustained thermal shift that confirms ovulation has already happened — not a guess from an average calendar.
Fertility awareness, made simple
The smart cycle tracker that knows when you ovulated
Harmonie follows the fertility awareness method — your morning basal body temperature, flow, cervical mucus and symptoms — marking the temperature shift, measuring your luteal phase, flagging shifting patterns and coaching you through every phase.
Free to start · no ads · your data stays private to your account
01
Log flow and morning temperature
A 20-second morning entry: flow, temperature, mucus, symptoms and mood — skip anything you don't track.
02
Watch your temperature curve
Every reading lands on a cycle-day chart, so the sustained rise after ovulation is easy to see across cycles.
03
Get confirmation and guidance
Harmonie marks the temperature shift, tracks your luteal length and tells you what to expect next.
Built for people who want the real signal
Most apps estimate from a 28-day average. Harmonie reads your body's own data and tells you what actually happened this cycle.
Cervical mucus and symptoms
Log mucus type, symptoms and mood alongside your temperature so the fertility awareness picture is complete, not temperature alone.
Alerts when patterns shift
Short luteal phases, cycles drifting under 25 or over 35 days, or falling ovulation confidence raise an alert before it becomes a long-term trend.
Phase-aware recommendations
Daily guidance for food, movement, work and life, matched to the phase you're actually in rather than the day of the month.
Insights from your history
Cycle length variability, luteal length, ovulation timing and temperature trends analysed across cycles, with plain-language things to consider.
Private to your account
Every entry is tied to your own profile and readable only by you. Export your full cycle history to Excel or PDF whenever you want it.
Go deeper
Ovulation calculator
Estimate your fertile window, peak day and next period from your last period date and typical cycle length — free, no sign-up needed.
Open the calculatorThe fertility awareness method
What the method is, the body signs it uses, and exactly how to measure your basal (waking) body temperature correctly every morning.
Learn the methodCycle syncing
How to align food, movement, work and rest with the four phases of your cycle — menstrual, follicular, ovulatory and luteal.
Read the guideStart tracking tonight
Create a private account, log your first temperature tomorrow morning, and let Harmonie do the analysis.
Track your cycle for freeKnow someone who'd love Harmonie?
Send a friend a short introduction by email or WhatsApp with a link to sign up.