Adaptive predictions
Our algorithm learns from your real cycles. The more you log (periods, cervical mucus, pain), the more accurate we get — down to the day after a few cycles.
New · Pregnancy mode
Cycle tracking, the easy way.
Plumm helps you understand yourself better month after month. Precise, gentle, and without any data leaving your phone. That's it. (And it's already a lot.)
4.9
Average rating
100% free
No ads
French
EU data
In 14 days
Next period
Yesterday
Ovulation peak
Today · 9 PM
Pill reminder
Plumm in action
An app you'll love to open.
Discover the screens that will accompany you every day. Designed for wellbeing, not for addiction.
Dashboard
Your cycle, readable in three seconds.
Calendar
A mascot that follows the seasons.
Personal
Roo knows you by heart.
Contraception
Pill, patch, IUD… everything covered.
Profile
Your stats, your rhythm, your story.
Alive
A new vibe every month.
Why Plumm
Accurate from your 1st cycle. Mind-blowing after the 3rd.
Plumm combines an adaptive algorithm, design built for your wellbeing, and full respect for your privacy.
Maximum reliability
Most apps predict based on an "average" 28-day cycle. Plumm learns yours. Our adaptive algorithm analyzes your unique signals 24/7.
Roo, your cycle companion
Roo follows you day after day, changes expression based on your mood, comforts you on tough days. So your tracking feels personal, not just data.
Smart reminders
Pill 21/7 or continuous, patch, ring, IUD, implant, injection. Plumm handles every contraception type and adapts reminders automatically.
4 modes, 1 app
Plumm adapts to you.
Whatever your life stage, Plumm switches mode automatically. Pick one at onboarding — change anytime.
Track my period
Adaptive predictions, fertile window, period end. The algorithm learns from your real cycles.
Trying to conceive
Pinpoint ovulation, fertile signals, cervical mucus, libido. Maximize your chances.
Pregnancy tracking
Week by week. Baby size as a fruit, development, changes in your body.
Contraception reminders
Pill, patch, ring, IUD, implant, injection. Never forget — always on time.
Maximum security
Your data, safe on your phone.
- 100% local storage on your phone — no cloud sync without your explicit consent
- No ads, no third-party trackers, no data resale
- Full GDPR compliance, right to erasure in 1 tap
- Open algorithm — prediction logic is transparent and auditable
Ready to discover your cycle differently?
Plumm is free and always will be. Coming soon to iOS and Android.
Coming soonDownload on the App Store
Coming soonGet it on Google Play