PMDD Tracker vs zday
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PMDD Tracker
Easily track your menstrual cycle, including emotional and physical symptoms, treatments, and notes. Generate printable reports for your doctor and personalize your tracking experience. Stay informed about your cycle phases and analyze your statistics over time.
- Track menstrual cycle
- Track emotional and physical symptoms
- Track treatments
- Write notes
- Generate printable reports
- Customize symptoms and treatments
- Daily reminders
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Your menstrual cycle at a glance. Track your cycle easily with symptoms and treatments, take notes and visualize it! Want to share it with your doctor? No problem, just generate a printable report! Want to personalize your tracking? Our tracker is fully customizable, modify it to your liking! HOW PMDD TRACKER WORKS - Track your menstrual cycle - Track your emotional symptoms - Track your physical symptoms - Track your treatments - Write notes - Have an easy overview of how you are doing - Recognize your phases - Analyze your statistics over time - Create PDF or CSV reports and share them with your doctor - Define your own symptoms and treatments - Collect new achievements - Stay on track with daily reminders - Lock your journal with Face ID or Touch ID PERFECT FOR: - PMDD - PMDD tracking - Premenstrual Dysphoric Disorder - PMDD journal - PMDD diary - Mental health monitoring - Therapy support tool - Medication tracking We value your privacy. Your journal entries are just yours, only accessible with your device. Consult with your doctor if you are experiencing any symptoms of an illness. This software is not a replacement of a medical treatment. It is intended for informational purposes only and comes with no warranty. You can read the terms of use and privacy policy here: http://adamcziko.com/pmdd-tracker-privacy-policy-and-terms-of-use/ You can find more information on the website: https://pmddtracker.com The app includes a premium subscription possibility. The subscription is automatically renewed after each subscription period. Want to get to know more about your current subscription, or you want to cancel it? You can get all the information by visiting the following page: https://support.apple.com/en-us/HT202039
zday
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Some people process their day by talking, not by typing — and definitely not by posting. zday is the diary for them. Open the app, tap once, and talk for one to three minutes. zday transcribes what you said, tags the mood and topics, and files it into a searchable timeline — so months from now you can find the day you talked about that job, that fight, that decision. No blank page. No typing. No audience. WHY IT'S DIFFERENT • Talk, don't type. Speaking is faster and kinder than writing, especially at 11pm. • Audio-first. The default is your voice — no camera, no watching yourself. Video is optional, and when you turn it on the preview stays hidden, so you're not performing. • Understood, not just stored. Every entry gets a mood and topic tags you can search and chart over time. • Gentle by design. A calendar heat map and "on this day last week" — never streaks, guilt, or red badges. PRIVATE BY ARCHITECTURE, NOT BY POLICY • No account. No sign-up. No server of ours. There is nothing to log into, and we hold nothing to breach. • Transcription and analysis run entirely on your iPhone. Nothing is sent to us — we operate no backend to send it to. • iCloud Sync is off by default. Leave it off and your diary never leaves this iPhone. Turn it on and it syncs between your own devices through your own private iCloud — your Apple Account, readable by you alone, still no server of ours. • Face ID or passcode lock, non-identifying thumbnails, and one-tap delete. • Full export, free and forever — your entries are yours to take with you. HONEST ABOUT THE TECH • Transcription uses Apple's on-device speech engine and needs a one-time language download the first time you record. After that it works offline. • Written entry summaries use Apple Intelligence and need a supported iPhone. On other devices you still get transcription, mood, topic tags, search, and charts — the diary works fully; you just won't see the generated one-line summary. • English is verified at launch (US, UK, Australia, Canada). More languages are on the way. WHO IT'S FOR The lurkers. The 11pm over-thinkers. People in therapy who were told to journal and never could. Anyone who has plenty to say and no interest in saying it to a crowd. ZDAY PLUS — OPTIONAL, NEVER REQUIRED The diary itself is free: recording, transcription, mood and topic tags, search, charts, and full export are not gated and never will be. zday Plus adds Ask (put a question to your own entries), weekly and monthly recaps, deeper patterns, premium themes, and iCloud Sync across your devices. Monthly, annual, or a one-time lifetime purchase. If Plus lapses, everything you already recorded stays yours, readable and exportable. All the expression. None of the audience. No ads. No tracking. No catch. Terms of Use (EULA): https://ahmetsina.com/zday/terms Privacy Policy: https://ahmetsina.com/zday/privacy
Screenshots
Verdict
The clearest difference is device support: PMDD Tracker at 3 against zday's 1. PMDD Tracker also leads on iOS requirement (13.0 vs 26.0). On price, ads and in-app purchases 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. PMDD Tracker sells 2 in-app purchases, starting at $9.99 per month and zday sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | PMDD Tracker | zday |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (183 ratings) — better | — |
| Positive reviews | 88.8% of reviews | — |
| Number of ratings | 183 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 56 MB | 2 MB |
| Age rating | 12+ | 4+ |
| Developer | Adam Cziko | Ahmet Sina Ustem |
Bugs and requests
PMDD Tracker
Reported bugs
3 issues- Calendar date buttons non-functional
- Unable to edit past entries by clicking dates
- App functionality issues preventing proper use
Requested features
12 requests- Customizable symptom severity scales (1-10, frequency options)
- Additional graphing and reporting options
- Automatic cycle phase prediction
- Brain fog symptom tracker
- Headache/migraine specific tracking
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- Body ache and nausea tracking
- Appetite and cravings tracking
- Insomnia tracking
- Visual pain scale (emoji faces like medical offices)
- Mental health journal feature
- Lower subscription pricing or more affordable tiers
- More free features to aid diagnosis
zday
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PMDD Tracker
- Monthly Plan3 Days trial$9.991 Month
- Annual Plan3 Days trial$39.991 Year
zday
- zday Plus Monthly$2.991 Month
- zday Plus Annual$24.991 Year
- zday Founding Member$19.99
- zday Plus Lifetime$79.99









