Comparison

MonoMood vs PMDD Tracker & Diary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MonoMood

Features
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A mood diary that takes five seconds and stays on your phone. MonoMood is one mood a day, on a simple 1–5 scale, with an optional note and tags. No account, no sign-up, no ads, no subscription. Nothing to configure before your first entry. NO SUBSCRIPTION, NO PAYWALL There is no Pro version. No paid tier, no trial that runs out, no feature waiting behind a paywall, and no limit on how many entries you keep. If MonoMood becomes useful to you, you can leave a voluntary tip in the app. That is the entire business model. Nothing in the app changes if you do. You simply keep an independent app alive. WHAT YOU CAN DO → Log a mood from 1 to 5 in seconds, once a day → Add a note when a number alone doesn't say enough → Tag an entry: work, sleep, family, whatever matters to you → Look back at any day on a calendar, colour-coded by mood → See your tags broken down in Statistics, so you notice what actually moves your mood → Get a daily reminder at a time you choose, so a busy day doesn't mean a missed entry YOUR DATA STAYS ON YOUR IPHONE No account. No MonoMood server. No tracking, no analytics. Your entries live in a local database on your device, and stay there unless you choose to back them up yourself: - Export your data as an open CSV file at any time. It's yours, take it anywhere - Or export it encrypted with a passphrase only you know, so a backup can be stored or handed on without anyone reading it - Turn on automatic backups and MonoMood writes an encrypted copy once a day in the background, to your iPhone or to your iCloud Drive - Restoring merges the backup into what's already on the device by date. It never wipes your diary to do it MAKE IT YOURS 14 colour themes in seven families: Standard, Summer, Forest, Sea, PixelCraft, Tropical and Rainbow, each in a light and a dark version. Pick one, or let the app follow your system appearance and switch with it. LOCK IT IF YOU WANT Turn on App Lock and MonoMood asks for Face ID, Touch ID or your passcode before showing your diary, on launch and every time you come back from another app. It stays off unless you turn it on. WORKS OFFLINE There is nothing to sync, so there is nothing to wait for. MonoMood needs no internet connection to do its job. WHO IS MONOMOOD FOR? → You want a quick daily check-in, not a full journaling app → You've had enough of wellbeing apps that ask for an account before showing you anything → You don't want your mood history on someone else's server → You want to notice your own patterns, not read someone else's advice → You like an app that looks the way you want it to English and German. Made in Austria. No ads, no tricks.

About

PMDD Tracker & Diary

Features
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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

MonoMood4 screens
PMDD Tracker & Diary4 screens

Verdict

The call

The clearest difference is update cadence: PMDD Tracker & Diary at every 2 days against MonoMood's every 7 months. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MonoMood sells 3 one-off in-app purchases 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.

UpkeepUpdate frequency

MonoMood ships an update every 7 months, PMDD Tracker & Diary every 2 days. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

Scorecard1 real difference · 5 level
MonoMood versus PMDD Tracker & Diary: the parameters behind the verdict, then further details
ParameterMonoMoodPMDD Tracker & Diary
PriceFreeFree
Update frequencyEvery 7 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod, Mac — better
Requires iOS16.415.0 — better
Further details — not scored
Size42 MB50 MB
Age rating4+12+
DeveloperMichael GuggenbergerLunaire Labs Limited

In-app purchases

3 purchases

MonoMood

One-time3
  • Small Support$0.99
  • Mittlere Unterstützung$1.99
  • Support Large$3.99
3 purchases

PMDD Tracker & Diary

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Annual$19.991 Year
One-time1
  • Premium Lifetime$24.99

Questions

Is MonoMood free?
MonoMood is free to download, with in-app purchases available.
Is PMDD Tracker & Diary free?
PMDD Tracker & Diary is free to download, with in-app purchases available.
Do MonoMood or PMDD Tracker & Diary have ads?
Neither MonoMood nor PMDD Tracker & Diary shows ads.
Which is updated more often, MonoMood or PMDD Tracker & Diary?
MonoMood ships an update every 7 months, and PMDD Tracker & Diary every 2 days. Most recently, MonoMood was updated on October 9, 2026 and PMDD Tracker & Diary on October 19, 2026.

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