Comparison

Synca vs Diamond Period Tracker

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

Head to head
About

Synca

This app uses AI to help you plan your daily tasks and activities around your menstrual cycle. It provides personalized insights and suggestions for energy, focus, and mood based on your current cycle phase. Optimize your productivity and well-being by working with your body's natural rhythms.

Highlights
  • AI-powered cycle-aware task planning
  • Personalized daily insights based on cycle phase
  • Four cycle phases with identified strengths
  • Smart calendar with energy-based event tagging
  • Quick daily mood and energy tracking
  • Phase-matched workout and meal suggestions
  • Private data storage on device
Read full description

Synca helps you plan your days around your menstrual cycle, not against it. Powered by AI and backed by science. Your hormones affect your energy, focus, and mood every single day. Synca reads your cycle phase and tells you when to push hard, when to communicate, and when to rest. Stop guessing why some days feel harder than others. CYCLE-AWARE PLANNING Brain dump your tasks — Synca's AI sorts them into your day based on your current cycle phase and energy levels. The right task, at the right time, in the right phase. 4 PHASES, 4 SUPERPOWERS Menstrual, follicular, ovulatory, luteal — each phase brings different strengths. Synca color-codes your entire month so you always know what's coming and how to prepare. AI DAILY INSIGHTS Every morning, get a personalized insight based on where you are in your cycle. What to expect, what to prioritize, and how to make the most of your day. SMART CALENDAR Your events tagged with cycle-aware energy badges — "Peak performance", "Go gentle", "Deep focus." See your schedule through the lens of your biology. TRACK IN 10 SECONDS Log your mood, energy, and symptoms with a quick daily check-in. The more you track, the smarter Synca gets. MOVE & NOURISH Workout and meal suggestions matched to your phase. HIIT when you peak. Yoga when you rest. Iron-rich foods during menstrual. Complex carbs in luteal. Science-backed, not generic. PREDICTIONS THAT LEARN Period predictions, cycle trends, and personal patterns and all getting smarter with every cycle you complete. PRIVATE BY DESIGN All health data is stored locally on your device. No account required to get started. No data sold. No third-party trackers. Your body, your data. Built by a woman, for women. Synca exists because your productivity tools should understand your biology. Full access available with a 1 month free trial subscription. Terms of Use: https://hellosynca.co/terms

About

Diamond Period Tracker

Read full description

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/

Screenshots

Synca4 screens
Diamond Period Tracker4 screens

Verdict

The call

The clearest difference is update cadence: Synca at every 2 weeks against Diamond Period Tracker's every 4 weeks. 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. Synca sells 2 in-app purchases, starting at $4.99 per month and Diamond Period Tracker sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Synca ships an update every 2 weeks, Diamond Period Tracker every 4 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 9 level
Synca versus Diamond Period Tracker: the parameters behind the verdict, then further details
ParameterSyncaDiamond Period Tracker
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhoneiPhone
Requires iOS17.016.6 — better
Further details — not scored
Size25 MB11 MB
Age rating4+4+
DeveloperBurcu IbiciogluElvin tansu Dogan

In-app purchases

2 purchases

Synca

Subscriptions2
  • Synca AI$4.991 Month
  • Synca AI7 Days trial$24.991 Year
2 purchases

Diamond Period Tracker

Subscriptions2
  • Monthly$9.991 Month
  • Yearly$69.991 Year

Questions

Is Synca free?
Synca is free to download, with in-app purchases available.
Is Diamond Period Tracker free?
Diamond Period Tracker is free to download, with in-app purchases available.
Do Synca or Diamond Period Tracker have ads?
Neither Synca nor Diamond Period Tracker shows ads.
Which is updated more often, Synca or Diamond Period Tracker?
Synca ships an update every 2 weeks, and Diamond Period Tracker every 4 weeks. Most recently, Synca was updated on October 31, 2026 and Diamond Period Tracker on November 5, 2026.

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