Patterns
Notice what repeats.
Find recurring logs and timing across recorded cycles. See the counts behind each pattern and review the records that support it.
Period & cycle tracking for iPhone and iPad
Your cycle.
A clearer picture.
Meet Her Calendar. See your cycle in a circle, keep your health logs together, and discover patterns in what you record.
Your health records stay on your device unless you choose to back up, sync, or share them. No account to create.
Free to download. Optional in-app purchases.
On-device analysisNo third-party ads
Record your days.
Periods, symptoms, mood, and more.
See the bigger picture.
Explore logs across your cycles.
Keep personal control.
Choose what to back up and share.
More than dates on a calendar
Make sense of
what you record.
From a single logged day to several completed cycles, find a view that helps you understand your history.
Log Insights
Put each log in context.
Explore a cycle-aligned timeline, zoom out for an overview, or look closer at individual days. Compare full cycles or focus around period starts.
Cycle comparison
Your history, side by side.
Compare cycle and period lengths, review ongoing history, and explore completed-cycle trends within your selected month and year window.
Screenshots show fictional sample records. Patterns describe recorded history, not a diagnosis or a guarantee of future cycles. Some features require an in-app purchase.
A view for every day
A circle for perspective.
A calendar for everyday.
Switch between the circular cycle view, a familiar calendar, and a yearly overview. Keep the information you need in the view that works for you.
- Log more than periods. Record flow, symptoms, mood, fertility signs, temperature, sexual activity, contraception, and test results.
- Fine-tune your history. Use Single day period editing for precise adjustments without changing how you normally log a period.
- Choose what you see. Organize your daily log sections and show or hide predicted fertility information.
Cycle and fertility predictions are estimates. They do not confirm ovulation and should not be used as contraception.
Useful beyond the screen
Your records.
More ways to use them.
Connect with Apple Health.
Import and synchronize supported health data with your permission. Choose which data types Her Calendar can read and write in Apple Health.
Not every app log has an Apple Health equivalent.
Take your history with you.
Create a shareable PDF health report with the history and sections you choose—useful for your own records or a conversation with your doctor.
- Cycle comparisons
- Log charts and summaries
- Recorded patterns
- Optional detailed records
Designed around your privacy
Personal health.
Personal control.
Her Calendar does not send your health logs to Hermanworks or RevenueCat. Your cycle predictions, Patterns, Log Insights, and PDF reports are calculated on your device.
Read the privacy policyNo account required.
Start tracking without signing up or providing your name or email address.
No third-party ads.
No third-party advertising in the app. Health records are not sold or shared for advertising.
Encrypted backups by default.
Optional iCloud backups use encryption in version 1.2.3 and later. Readable JSON is an option you control.
Sharing is your choice.
You choose whether to connect Apple Health, use iCloud backups, or share a report or file.
Apple and RevenueCat process purchase-related information separately from your health logs. Apple’s services and your device backup settings may store copies of app data. See the privacy policy for details, backup recovery requirements, and support information.
A few things worth knowing
Your questions,
answered.
Do I need an account to use Her Calendar?
No Her Calendar account is required. You can track your cycle without registering or giving us your name or email address. Apple services such as purchases and iCloud use your Apple Account.
Where are my period and health records stored?
Records are stored in the app on your device, and analysis runs locally. You can choose to copy supported records to Apple Health, save backups in iCloud Drive, or export and share files. Hermanworks does not receive your health records through the app.
Does Her Calendar work with Apple Health?
Yes. With your permission, Her Calendar can import and synchronize supported data such as menstrual flow, selected symptoms, basal body temperature, cervical mucus quality, sexual activity, and supported test results. You control access in Apple Health or device settings.
Are iCloud backups encrypted?
New backups are encrypted by default in version 1.2.3 and later. Enable iCloud Passwords & Keychain to restore encrypted backups on other devices using the same Apple Account. Recovery depends on the matching backup protection being available. If all copies of that protection are lost, an encrypted backup may be unrecoverable. Readable JSON backups are optional; anyone with one of those files can read and restore it. Existing JSON files are not automatically converted. Read about backup protection.
Can I share a report with my doctor?
Yes. Choose the history and sections to include, generate a PDF report, and share it through your device’s sharing options. Reports summarize your records; they are not a diagnosis. PDF reports contain readable health information, so share them only with people or services you trust.
Is Her Calendar free?
Her Calendar is free to download, with optional in-app purchases for additional features. See the App Store and the app for current purchase options, availability, and prices.
A little more clarity.
One cycle at a time.
Her Calendar for iPhone and iPad.
Requires iOS 15 or iPadOS 15 or later. Optional in-app purchases.