Know your cycle.
Own your health.
A mosaic of your cycles and stories.
Mozi is a menstrual cycle tracking and wellness app. Log your period, track your phases, understand your fertile window, and learn about your body — all in one private app.
Free to use. Premium when you're ready.
Core tracking works immediately — no account needed. Creating a free account unlocks cross-device sync. Premium unlocks advanced modes and requires an account.
Period & Cycle Tracking
Log period dates, flow intensity, and cycle length. A colour-coded calendar shows all four phases. Predictions improve as you track more cycles.
Daily Wellness Log
Log your mood, physical symptoms (cramps, fatigue, bloating, headache, and more), and intercourse. Patterns link back to your cycle phases over time.
Phase-Based Education
Articles matched to your current phase and age group (teen or adult). Plain language, no jargon, no ads.
Period Reminders
Optional notifications for your upcoming period and daily log prompts.
Partner View
Share your cycle phase and mood with a trusted partner, privately and on your terms.
Pregnancy Tracker
Week-by-week baby development, due date countdown, trimester milestones, and prenatal appointment tracking.
Trying to Conceive (TTC)
Fertile window countdown, ovulation timing, BBT and LH tracking, and home pregnancy test logging with line progression chart.
Natural Birth Control (NFP)
Daily fertility status based on the sympto-thermal method. Informational only — not a certified contraceptive.
Irregular Cycles
Symptom-first tracking for PCOS and perimenopause. No misleading predictions when cycles are unpredictable.
Doctor-Ready Cycle Report
Your cycle history, ovulation data, and recurring symptoms formatted to share with your healthcare provider.
12-Month Period Forecast
All predicted periods and fertile windows for the year ahead at a glance.
Mozi AI — Cycle Companion
Chat with an AI that knows your cycle. Ask about phases, symptoms, hormones, and what to expect. Educational only — not medical advice.
Your data stays yours
Reproductive health data is sensitive. We built Mozi so that you — not us, not advertisers — are in control of it.
Read Privacy Policy- ✓We never sell your health data or share it with advertisers
- ✓Use the app as a guest — no email, no identity required
- ✓Row-level security — only your session can access your rows
- ✓All data encrypted in transit and at rest
- ✓Delete your account and all data at any time
Simple pricing
Free features are always free. Upgrade when you need more.
Monthly
$8.99
per month
Billed monthly. Cancel anytime through App Store or Google Play.
Yearly
$59.99
per year — $3.33/mo
Best value. Cancel anytime. Auto-renews unless cancelled 24 hours before renewal.
Payments processed by Apple App Store or Google Play. Prices may vary by region. Refunds are handled by Apple or Google.
The Mozi Journal
Practical, empowering guides to understanding your body at every stage.