Comparison

Her Rhythm vs Cycle Diary

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

Head to head
About

Her Rhythm

Features
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Her Rhythm is fitness that moves with your body, not against it. Tell the app where you are in your cycle and it recommends the right training for today - push harder in your follicular and ovulatory days, recover smarter around your period, and stop guessing why the same workout feels different week to week. WHAT YOU GET - Daily recommendations tuned to your cycle phase - A catalog of 36 workouts across strength, conditioning, and recovery - full body, legs, core, HIIT, intervals, running, Hyrox, yoga, Pilates, and mobility - Guided sessions with exercise videos, set timers, and rest tracking - Your own weights and reps, remembered per exercise - A calendar to plan your week and a history with streaks and stats - Cycle overview with phase, fertile window, and next-period estimate Your cycle data stays yours: it is used only to personalize your training, never sold, and you can delete your account and all data in the app at any time. Her Rhythm comes with a 14-day free trial. After that, training requires a Premium membership (monthly or annual auto-renewing subscription, billed through your App Store account and cancellable anytime in your App Store settings). Prices are shown in the app before you subscribe. Her Rhythm is a wellness app, not a medical device - cycle estimates are approximations and no substitute for medical advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fitness-core-flux.fly.dev/privacy

About

Cycle Diary

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Cycle Diary is a private period tracker and menstrual calendar that lives on your phone. Log your period, follow your cycle, and see the pattern your body has been keeping all along. There is no account to create, no ads, no subscription and nothing behind a paywall. Every feature is free, in 65 languages. TRACK YOUR PERIOD Tap the days your period starts and ends and the calendar fills in around them. Cycle Diary works out your average cycle length and period length from what you actually enter, then shows the next expected period right on the home screen. Cycles that are not clockwork are perfectly normal, so if yours vary you can switch on irregular mode and see an honest date range instead of a single confident day. KNOW YOUR FERTILE WINDOW Turn on fertility predictions and the calendar marks your fertile window and your estimated ovulation day, with higher and lower chance days shaded so you can read a whole month at a glance. These are estimates based on the dates you enter. They are not medical advice and not a method of birth control. LOG MORE THAN DATES A period is not only a date range. For any day you can record flow intensity from spotting to heavy, your mood, symptoms such as cramps, headache, bloating, back pain, breast tenderness, nausea, dizziness, acne, appetite changes, fatigue and insomnia, whether you were sexually active and whether protection was used, and a note in your own words. SEE YOUR OWN PATTERN The history screen lays out every recorded cycle beside the length of the period inside it, so you can tell at a glance whether things are steady or drifting. Averages update as you log. You choose whether predictions are calculated from your recent months or from lengths you set by hand. GENTLE REMINDERS Optional notifications tell you when your period is due, when a heavier day is expected, when your fertile window opens and when your cycle is running late. You pick how many days ahead and at what time of day, and you can switch the lot off. PREGNANCY MODE Expecting? Record the start and expected end of a pregnancy and Cycle Diary pauses predictions and reminders for that stretch rather than guessing at a cycle you are not having. Your history is kept and picks up again afterwards. BUILT TO STAY PRIVATE Your entries live on your device. There is no account, we run no servers of our own, and there is nothing to sign up for. If you are signed in to iCloud your entries also sync to your own private iCloud storage, encrypted, so a new phone or a reinstall brings them straight back. We never see them. No analytics, no advertising, no tracking of any kind. LOCK IT Set a PIN, or unlock with Face ID or Touch ID. You can also hide the app's contents in the app switcher, so a glance over your shoulder shows a blank screen. YOURS TO TAKE WITH YOU Export everything to a CSV file whenever you like, and import a CSV back in. Your data is never held hostage. WHO IT IS FOR Whether you are keeping an eye on your monthly cycle, trying to conceive, watching PMS build in the days before bleeding, following an irregular or unusually long cycle, coming off hormonal birth control, or you simply want a quiet private diary of how each month felt, Cycle Diary stays out of your way. It works offline and opens straight to the calendar. NO ACCOUNT, NO ADS, NO SUBSCRIPTION Nothing is locked. No premium tier, no trial that ends, no upsell, no advertising. The whole app is free and always will be. IN 65 LANGUAGES English, Spanish, Chinese, Hindi, Arabic, French, Bengali, Portuguese, Russian, Indonesian, Urdu, German, Japanese, Vietnamese, Turkish, Korean, Thai, Italian, Dutch, Greek, Polish, Malay, Malayalam, Swedish, Hungarian, Czech, Hebrew, Catalan, Croatian, Danish, Finnish, Slovak, Norwegian, Slovenian and more. Cycle Diary is a tracking and information app. It is not a medical device and gives no medical advice, diagnosis or treatment. For health decisions, speak to a qualified healthcare professional.

Screenshots

Her Rhythm4 screens
Cycle Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: Cycle Diary at none against Her Rhythm's 2. Her Rhythm's advantage is iOS requirement (15.1 vs 17.0). On price, ads 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. Her Rhythm sells 2 in-app purchases, starting at $8.99 per month. Cycle Diary asks for nothing beyond the download.

Scorecard2 real differences ¡ 4 level
Her Rhythm versus Cycle Diary: the parameters behind the verdict, then further details
ParameterHer RhythmCycle Diary
PriceFreeFree
Update frequency—Every 8 days
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size35 MB5 MB
Age rating12+12+
DeveloperDayan JonkerAdnan Adnan

In-app purchases

2 purchases

Her Rhythm

Subscriptions2
  • Premium Monthly$8.991 Month
  • Premium Annual$49.991 Year
None

Cycle Diary

No in-app purchases

Questions

Is Her Rhythm free?
Her Rhythm is free to download, with in-app purchases available.
Is Cycle Diary free?
Cycle Diary is free to download, with no in-app purchases.
Do Her Rhythm or Cycle Diary have ads?
Neither Her Rhythm nor Cycle Diary shows ads.

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