Iris vs PMOSense

Every feature free. No subscription. No data sharing. Ever. Many period apps charge $10 to $15 a month, and some have been caught sharing reproductive health data with advertisers. Iris keeps your cycle data on your iPhone: no Iris servers, no account, no analytics. Your health data is never shared or sold. PERIOD & CYCLE TRACKING Log your period and Iris predicts your next one, your fertile window, ovulation day and PMS phase, mapped out weeks in advance. Color-coded calendar, day log and smart reminders included. HOME & LOCK SCREEN WIDGETS See your cycle day, phase and days until your next period at a glance, right on your Home Screen or Lock Screen. IRREGULAR CYCLE TRACKING Iris detects cycle variability from your data and switches to honest prediction ranges instead of single dates. No fertile window guessing for irregular cycles. Built for PCOS, perimenopause and anyone whose body doesn't fit the textbook. PERSONAL INSIGHTS & PATTERN DETECTION Iris turns your daily logs into useful patterns. See which symptoms, moods, discharge types, activity and vitals appear most often in each cycle phase, then tap into any pattern for phase distribution, cycle-day timing, recent history and prediction notes. After enough history, Iris can help you spot recurring signals like fatigue, cramps, mood shifts or discharge changes before they appear, with insights calculated privately on your device. LH STRIP LOGGING Log your daily ovulation test result: Negative, Positive or Peak. Iris immediately shifts your ovulation estimate to reflect your actual LH surge. Over time, Iris learns your personal luteal phase length and uses it to sharpen every future prediction, replacing the generic 14-day default with your actual biology. BBT TRACKING Log your basal body temperature each morning and Iris calculates your personal coverline. When three consecutive readings rise above it, Iris marks a confirmed thermal shift: retrospective confirmation that ovulation occurred. Pair BBT with LH strips for the symptothermal method, completely free. APPLE HEALTH SYNC Two-way sync with Apple Health. Iris reads your period history, BBT from connected thermometers, sleep and weight. Period days, BBT, LH results and cervical mucus are written back to your Health dashboard. What you log in Iris always wins; Apple Health only fills days you haven't logged. CONTRACEPTIVE & POSTPARTUM MODE On the pill, a hormonal IUD or a copper IUD? Contraceptive Mode pauses ovulation predictions, labels bleeds as withdrawal bleeds and adds a daily pill reminder. Just had a baby? Postpartum Mode pauses predictions while you recover, then resumes when you're ready. SYMPTOM & MOOD TRACKING Log mood, 14 symptoms (cramps, bloating, fatigue, acne, brain fog, hair shedding and more), discharge type with fertility context, sleep, weight and notes for any day. HORMONE EDUCATION Visualize estrogen, progesterone, FSH and LH across your full cycle, mapped to your own cycle length so the chart reflects your actual rhythm. PARTNER SHARING Invite a partner to follow your cycle: view-only, end-to-end encrypted and completely free. PRIVATE BY DESIGN Your data stays on your iPhone. No Iris servers. Optional iCloud backup goes to your own iCloud account, and we never see it. No analytics or tracking SDKs. The free version shows ads, which never receive your health data; a one-time purchase removes them. 100% FREE, NO EXCEPTIONS No premium tier. No subscriptions. No paywalls. Every single feature, from LH logging and BBT charting to irregular cycle detection, Apple Health sync, widgets, contraceptive mode and postpartum mode, is free for everyone, forever. Download Iris. Your cycle is yours.

PMOSense is a cycle tracking app built specifically for people with PCOS, PMOS, and irregular cycles — where typical 28-day cycle apps often fall short. Most cycle trackers assume your cycle is regular and predictable. PMOSense doesn't. It helps you understand your unique patterns using your logged body signs, cycle history, and fertility data. WHAT YOU CAN TRACK • Period start, end, and flow • LH test strips with automatic camera-based result reading • Basal body temperature (BBT) • Cervical fluid • Energy levels • Mood and stress • Symptoms and custom symptom tracking • Daily notes • Medications and supplements related to cycle health, fertility, and PCOS management WHAT YOU GET • Fertility window estimates that adapt to irregular cycles • Ovulation insights using LH, BBT, and cervical fluid together • Cycle predictions with realistic date ranges instead of a single fixed date • Prediction reviews that compare previous predictions with actual cycle outcomes • Recent cycle timeline showing your logged signs and cycle history • Personalized cycle insights based on your logged data • Mood, stress, symptom, and energy trend insights • Identification of possible anovulatory cycles and irregular cycle patterns • Medication and supplement reminders • Doctor Report — a clear cycle summary you can share with your healthcare professional BUILT FOR PCOS & IRREGULAR CYCLES Whether you experience long cycles, short cycles, irregular periods, or cycles without ovulation, PMOSense is designed to work with real-world cycle variability instead of assuming a perfect 28-day cycle. Confidence indicators help explain when predictions are based on strong patterns and when additional data may improve future insights. PRIVATE BY DEFAULT Your data belongs to you. PMOSense does not sell your personal health information. You can manage, export, or delete your data at any time.