Steadied vs PMDD Tracker & Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Steadied
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Steadied is a cycle, hormone, and symptom tracker for PCOS, endometriosis, adenomyosis, PMDD, PMS, perimenopause, postpartum recovery, hypothalamic amenorrhoea, and menstrual migraine. It isn't a fertility tracker or contraceptive. Patterns take cycles to surface. Steadied makes that wait worth it: insights built over months can be the kind a clinician will engage with. PRIVACY BY CONSTRUCTION • No accounts, no sign-up, no tracking • No servers — your data is not sent to us • No third-party analytics, no advertising IDs • iCloud sync uses your private database (end-to-end encrypted by Apple) • Panic Delete clears covered cycle/report data: this device, your iCloud, and the suite slice BUILT FOR CHRONIC-ILLNESS AUDIENCES Pick PCOS, endometriosis, adenomyosis, PMDD, PMS, perimenopause, postpartum, hypothalamic amenorrhoea, menstrual migraine, or "tracking only" during onboarding. Steadied tailors the symptom set, the language, and the insights to your conditions. Change them any time. Inclusive language preference (default neutral; non-binary and trans-masc options). PERIOD, SYMPTOM AND PAIN LOGGING Five flow levels, birth-control checks, treatments, a curated 40-symptom catalogue filtered to your conditions, custom symptoms, 1–10 severity sliders, optional notes, and a Pain map for body-location pins. Edit any past day from the calendar. METHOD TRACKING Track birth-control method, start date, daily reminders for daily methods, and cycle-suppression context. Steadied is still not contraceptive advice. CALENDAR WITH IRREGULARITY-AWARE WINDOWS Logged periods show as filled circles, your next-period window as a dashed outline. When your cycles vary by more than ~5 days, Steadied widens the window to a range — no false confidence on a single date. Common with PCOS, perimenopause, or postpartum. INSIGHTS Free: • Cycle rhythm — average length, range, honest prediction windows • Phase patterns — symptom severity, energy, and sleep averages per phase Steadied+: • Before-period changes — baseline vs pre-period 3-day average, worst-day offset, cycle count • Cycle rhythm drill-downs — trend, irregularity signals, year timeline • Symptom Patterns — top symptoms by phase and date heatmap • Pain Locations — cycle-linked body-map pain summaries • Body Signals — sleep, resting HR, HRV, and wrist temperature by phase • Doctor Reports, scheduled reports, CSV export, and curated symptom renaming REPORTS FOR YOUR CLINICIAN Single-file PDF: cycle history, bleeding pattern, phase analysis, premenstrual pattern, length trend, symptom log summary, treatment context, and pain locations when logged. Scheduled Doctor Reports are included in Steadied+. APPLE WATCH APP & WIDGETS Standalone Watch app with phase, cycle day, flow picker, symptom quick logging, flare/context chips, and daily birth-control or treatment check-ins when configured. Five iOS widget families plus four watch complication families. APPLE HEALTH Read-only menstrual flow and spotting import, plus wearable readings when available: resting heart rate, sleep, HRV, and wrist temperature. Steadied never writes back to Apple Health by design. BACKUP, RESTORE & EXPORT Free JSON backup and restore for cycle, symptom, pain-map, treatment, report, and wearable data with Merge or Replace modes. Restore requires iCloud Sync to be fully off for the current launch. Automatic backups can write to iCloud Drive. Steadied+ adds CSV export. PRICING Steadied+ is a one-time £29.99 purchase. Family Sharing eligible. No subscription. No "trial expired" messaging. SAFETY Steadied is not a medical device. Period-date estimates are based on your own data and are not contraceptive. Do not use Steadied for fertility planning, conception, or contraception. If you are concerned about your symptoms, consult a clinician — do not wait for the app to surface a pattern. Terms: https://www.cocoacorn.com/steadied/terms Privacy: https://www.cocoacorn.com/steadied/privacy
PMDD Tracker & Diary
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PMDD, tracked with the seriousness it deserves. Lunaire PMDD Tracker & Diary is a private, offline symptom diary for people living with premenstrual dysphoric disorder. Log luteal-phase mood crashes, anger, anxiety, physical symptoms and cycle patterns. WHAT YOU CAN TRACK • Mood — low mood, anger, anxiety, hopelessness, irritability • Sleep disturbance • Fatigue and low energy • Physical symptoms — bloating, breast tenderness, cramps, headaches • Difficulty concentrating, cravings and appetite changes • Period dates, flow and spotting — so you can see your symptoms alongside your cycle • 24 built-in symptoms in total • Supplements, and whether you took them • Food, drink and exercise by type and intensity • Weight (kg, lbs or st), blood pressure, pulse and temperature • Appointments and daily notes (reminders with Premium) Every symptom and exercise is rated on a simple five-point scale — you can log the same symptom or exercise multiple times a day. Many people live with more than one condition, so with Premium you can add symptoms of your own and hide the ones you don't use — the lists end up matching you. PRIVACY-FIRST BY DESIGN • No accounts. No sign-up. Open the app and start logging. • No tracking. Your data lives in a local database only you control. • No ads. Ever. No analytics. • Works fully offline. PDF REPORTS (PREMIUM) Generate a clean PDF of your cycle-mood pattern and symptom severity — share it with your doctor, gynecologist or psychiatrist in one tap. BUILT FOR PMDD, NOT PMS PMDD is not "bad PMS". Lunaire PMDD Tracker & Diary keeps your mood log and your period log side by side, so you can see how your symptoms line up with your cycle. FREE • Symptom, mood, period, food, exercise and supplement logging • Up to three entries per symptom per day • Calendar view • Weight, temperature and blood pressure • Appointments • One week of trends and charts • Your complete history, always browsable • Backup and restore to a file you keep • Light, dark and AMOLED themes, plus an in-app language picker PREMIUM • Trends over one month, three months, a year or all time • PDF reports • CSV data export • Twelve entries per symptom / exercise per day • Your own custom symptoms and exercises, plus hiding the ones you don't use • Supplement and appointment reminders • A personalized home screen • Your top eight symptoms instead of three Track PMDD — privately. These screenshots are just a small selection from the app. All screenshots show example data, not real records. Premium: an affordable monthly or yearly subscription, or a one-time lifetime purchase. Built by Lunaire Labs — privacy-first symptom trackers for Cycle, Menopause, PMDD, Endometriosis, Thyroid, IBS, Fibromyalgia, POTS and Lupus. Available in: English, Deutsch, Nederlands, Français, Español, Italiano, Português, Svenska, Norsk, Dansk, Suomi, Polski, Türkçe, 日本語, 한국어, 繁體中文, 简体中文. Important: Lunaire PMDD Tracker & Diary is not a medical device and does not diagnose, treat, cure, or prevent any condition. It is a personal symptom diary only. Always consult a qualified healthcare professional for advice, diagnosis, or treatment. Never self-adjust a professionally administered prescription based on information in this app. Terms of Use (EULA): https://lunairelabs.uk/eula Privacy Policy: https://lunairelabs.uk/privacy
Screenshots
Verdict
The clearest difference is update cadence: PMDD Tracker & Diary at every 2 days against Steadied's every 11 days. PMDD Tracker & Diary also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Steadied sells 1 one-off in-app purchase and PMDD Tracker & Diary sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Steadied ships an update every 11 days, PMDD Tracker & Diary every 2 days. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.
| Parameter | Steadied | PMDD Tracker & Diary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Mac |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 71 MB | 50 MB |
| Age rating | 12+ | 12+ |
| Developer | Geoff Davis | Lunaire Labs Limited |
In-app purchases
Steadied
- Steadied+$29.99
PMDD Tracker & Diary
- Premium Monthly$2.991 Month
- Premium Annual$19.991 Year
- Premium Lifetime$24.99









