Period & ovulation tracker · moods & symptoms · couples
A period tracker that feels a little more human.
MoodSwings helps you understand your period, moods, symptoms, fertile window and cycle-aware routines — with a softer app experience you can actually keep using, and a consent-first dashboard for the partner who wants to show up well.
Why MoodSwings
Tracking shouldn't feel
like homework.
Most cycle apps drown you in charts and nag you into churn. MoodSwings keeps daily logging to seconds, predicts around your pattern — not a textbook 28 days — and turns what you log into insights you'll actually read.
How it works
Three gentle steps
Log your period
A couple of taps on the calendar — MoodSwings learns your cycle from day one.
Add how you feel
Moods, symptooms and energy in seconds — only what you want to track, nothing more.
See what's coming
Next period, fertile window, PMS patterns — and a partner view if you choose to share.
Free — no sign-up
Try a quick cycle tool
Get an instant estimate in your browser — then let MoodSwings do it automatically, every cycle.
Ovulation calculator
Estimate your fertile window from your last period.
Calculate →Period calculator
Predict your next period dates in seconds.
Calculate →Is my period late?
See exactly how many days late (or early) you are.
Calculate →Cycle length calculator
Work out your average cycle from recent periods.
Calculate →Cycle phase calculator
Find which phase you are in today.
Calculate →Made for
The cycle moments people actually live with
For couples
A consent-first partner dashboard — support context without oversharing.
Learn more →Trying to conceive
Fertile-window estimates with honest, real-life caution.
Learn more →PMS mood patterns
See how moods, cravings and energy map to your phases.
Learn more →Privacy-first tracking
What stays on your phone, and why it matters.
Learn more →Cycle-aware wellness
Workouts and routines that follow your energy, not fight it.
Learn more →Compare trackers
How MoodSwings stacks up against the apps you know.
Learn more →The app
Warm, calm, and quick to log
Pricing
Less than a coffee a month
- Unlimited period, mood and symptom tracking
- Cycle predictions tuned to your pattern — irregular included
- PMS pattern insights and cycle-aware workouts
- Consent-first partner dashboard and notifications
- Cancel anytime in your App Store settings
Exact prices are always shown in the App Store before you confirm.
Questions
Everything people ask first
How does MoodSwings predict my period?
From the period dates you log, it learns your cycle pattern (including irregular ones) and predicts upcoming periods, fertile windows and phases — refining as you log more.
Learn more →Can my partner see my cycle?
Only if you invite them. Partner sharing is consent-first and read-only — they see supportive context you choose, never your private notes.
Learn more →Is my data private?
Your health data is never sold and never used for ad tracking. Read the plain-English privacy guide for exactly what is stored.
Learn more →My period is late — what now?
Use the free late-period checker to see how many days late you are versus your own cycle length, and what commonly causes a late period.
Learn more →Does it work for irregular cycles?
Yes — the prediction engine classifies nine cycle patterns, including irregular and recovering cycles, instead of assuming a perfect 28 days.
Learn more →How much does MoodSwings cost?
Free to download. MoodSwings Premium is $29.99/year (about $2.50/month, 7-day free trial) or $6.99/month.
Learn more →