Diamond Period Tracker vs Cycly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diamond Period Tracker
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Your Cycle. Your Privacy. Your Diamond. Diamond is a private period tracker, period calendar, menstrual cycle tracker, ovulation tracker, and fertility tracker designed for women who value privacy, elegance, and simplicity. Track your period, predict your ovulation, monitor your fertile window, record symptoms, moods, and energy, and build a complete cycle history—all without creating an account. No sign up. No cloud. No tracking. Your data stays on your device. A BEAUTIFUL PERIOD TRACKER Diamond transforms everyday cycle tracking into a calm and premium experience. Whether you’re tracking your menstrual cycle, using it as a period diary, checking your period calendar, or monitoring your fertility window, Diamond keeps everything beautifully organized. PERIOD & MENSTRUAL CYCLE TRACKER Stay informed throughout every stage of your cycle. •Period tracker •Menstrual cycle tracker •Cycle calendar •Period calendar •Ovulation tracker •Fertility tracker •Fertile window prediction •Period prediction •Cycle prediction •Cycle length tracking •Period log •Menstrual calendar Understand your body with accurate and simple tracking. LOG YOUR DAILY SYMPTOMS Record everything that matters. •Flow intensity •Cramps •Headache •Bloating •Breast tenderness •Mood tracking •Energy tracking •Notes & reflections •Daily journal Over time, Diamond helps reveal patterns in your cycle. SMART CYCLE INSIGHTS Your personal history becomes meaningful insights. •Cycle Archive •Period history •Symptom history •Mood history •Future period predictions •Ovulation estimates •Fertility window estimates Understand how your cycle changes month after month. PRIVATE BY DESIGN Privacy isn’t a feature. It’s the foundation. Diamond never asks you to create an account. •No sign up •No email •No cloud storage •No third-party tracking •No data collection •Local storage only •Complete control of your personal information Your health data belongs to you. THE VAULT Protect your most personal notes with a secure PIN. Store private reflections, cycle notes, and personal journal entries inside your private Vault. Only you can access them. PREMIUM EXPERIENCE Designed to feel elegant every day. •Beautiful Light Mode •Luxurious Dark Mode •Clean minimalist interface •Smooth navigation •Fast performance Diamond focuses on clarity, comfort, and privacy—not clutter. WHY WOMEN CHOOSE DIAMOND •Private period tracker •Period calendar •Menstrual cycle tracker •Ovulation tracker •Fertility tracker •Symptom tracker •Mood tracker •Wellness journal •Local storage •PIN Lock •Beautiful design •No account required •No cloud •Zero tracking Download Diamond today and experience a private, elegant, and beautifully designed period tracker made for everyday cycle tracking. Diamond — Your Private Period Tracker. Privacy Policy https://sites.google.com/view/diamondperiodtracker/home Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Cycly
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Cycly is a beautifully simple period & cycle tracker that puts your privacy first — and follows you through every stage of life. 100% PRIVATE Your data is stored only on your iPhone. No account. No cloud. No tracking, no ads, no data ever sold. Our App Store privacy label is literally "Data Not Collected." Lock the app with Face ID for extra peace of mind. ONE-TIME PURCHASE — NO SUBSCRIPTION Pay once, own it forever. No hidden subscriptions, no yearly fees. Support an independent, privacy-first project instead of renting your own data back. TRACK YOUR CYCLE • Log flow, symptoms, mood & energy in seconds • A clean calendar with every phase • Predict your next period, ovulation and fertile window • Gentle reminders for your period, fertile window, ovulation and the pill EVERY LIFE STAGE — IN ONE APP • Cycle — your everyday tracker • Pregnancy — week-by-week, baby size, milestones and a kick counter • Menopause — track the transition toward 12 period-free months • Postpartum — recovery weeks and your 6-week checkup UNDERSTAND YOUR BODY (Premium) Cycle-length charts, full statistics, and a doctor-ready report you can export as PDF or CSV. Cycly is a tracking & educational tool, not a medical device. Predictions are estimates and don't replace medical advice. Medical disclaimer: Cycly is a tracking and educational tool, not a medical device, and does not provide medical advice, diagnosis, or treatment. Predictions are estimates. Always consult a qualified healthcare professional and seek your doctor's advice before making any medical decisions. Terms of Use: https://thiagoyosemite.github.io/cycly-legal/terms.html Privacy Policy: https://thiagoyosemite.github.io/cycly-legal/privacy.html
Screenshots
Verdict
Diamond Period Tracker and Cycly are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Diamond Period Tracker sells 2 in-app purchases, starting at $9.99 per month and Cycly sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Diamond Period Tracker | Cycly |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 29 MB |
| Age rating | 4+ | 12+ |
| Developer | Elvin tansu Dogan | THIAGO CANASSA |
In-app purchases
Diamond Period Tracker
- Monthly$9.991 Month
- Yearly$69.991 Year
Cycly
- Cycly Premium$4.99









