You can now choose a calendar theme. A simple period tracker with no ads or account required. Data is stored on your device. Plus is a one-time purchase.
Track your period with a simple, ad-free calendar.
Record start and end dates, review past periods, and see your next predicted date at a glance.
Free features
• Period tracking and notes
• Period predictions and notifications
• Manual backup and migration backup
• App lock
Paid features (one-time purchase)
◇ Simpluna Plus
• Ovulation prediction and PMS
• Custom tracking fields
• Health app integration
• Notification customization
• Pill reminder
• Widget
• Other (calendar improvements, CSV export, pause, etc.)
◇ Custom themes
◇ Continuous cloud backup
◇ Data sharing
No account is needed for everyday tracking. Your records stay on your device unless you choose to use optional cloud backup or data sharing.
Predictions shown in the app are estimates based on your records.
They are not intended for medical diagnosis or treatment, or for decisions about contraception or pregnancy.
No articles, AI chat, or forums — just your records and predictions.
—————— Features ——————
▶ Easy recording
To record your period, just tap a date on the calendar and press the start or end button. It is intuitive, so there is nothing new to learn.
▶ Notes on each day
If there is anything you want to keep track of, such as how you feel or your physical condition, you can leave it as a note.
▶ Notification before the predicted date
You can receive a notification as your next predicted period approaches. You can specify how many days in advance and at what time you want to be notified.
▶ Register up to 1 year of past data
If you have past period records, you can register them. The available range goes back up to 1 year from when you started using the app. (With Simpluna Plus, you can register up to 10 years.)
▶ Forecast calendar up to 1 year ahead
The forecast calendar lets you look up to 1 year into the future. You can also save future plans as notes and view them together with the predictions.
▶ List of past periods
You can review your past periods as a list.
▶ App lock
You can lock the app with a 4-digit passcode if you do not want others to see it. Face ID is also supported.
▶ Dark mode support
The UI colors automatically switch to match light or dark mode.
▶ Works offline
You can keep using the app even when offline or with a poor signal.
—————— Simpluna Plus (Paid: one-time purchase) ——————
▶ Color themes
16 colors are available.
▶ Ovulation tracking
Predict and manage ovulation, including the window around it.
▶ PMS period display
The PMS period is shown as an underline on the calendar. You can change the number of days for the period.
▶ Pause
Pause predictions during pregnancy, treatment, or other times.
▶ Prediction summary
Show your current cycle day, next period, and ovulation prediction on the home screen.
▶ Customizable input fields
Add custom fields such as symptoms, flow, temperature, or medication.
▶ Customizable notifications
You can freely change the timing and message of notifications.
▶ Pill reminder
Set daily pill reminders, active periods, break periods, and the message.
▶ Widget
Show your next predicted period as a home screen widget.
▶ Past data registration (up to 10 years)
You can register data going back up to 10 years from the day you started using the app.
▶ Health app integration
Auto-sync period dates, import from the Health app, and export.
A 24-hour trial is available before purchase (you will not be charged automatically).
—————— Other one-time purchases ——————
▶ Calendar themes
Purchase calendar themes such as Flow, Sky, and Botanical individually. Every theme works the same way.
▶ Continuous cloud backup
Continuous cloud backup with a one-time purchase. No monthly or annual fees. Migration and manual backups are free.
▶ Data sharing
Share records and predictions with someone you choose. Includes data backup.
—————— Supported OS ——————
iOS 16.4 or later is required.
Some older iOS versions may not be able to install future updates.
After being recommended several different period tracking apps, this one is far superior for my needs. It is exactly what was looking for; simple and easy to use. I am past the point in my life that I need to track ovulation, and wanted something that would remind me my period is coming, have a calendar to show, and calculate when based on my average challenge is. As a woman that is in the beginning stages of perimenopause, my period is no longer as predictable as it once was. The three day until period starts is a such a wonderful feature with them beginning to become a little closer together. I highly recommend if you are in the same point in your life as I am, and want something straightforward to use.
I’ve been looking for this!
violetoaks
I installed six other apps before I found this one. This app is finally the one I was looking for! It’s simple, and has notifications that work effectively. It doesn’t have a lot of distracting information on it, so I can clearly see what I need when I open the app. Thank you! The one time purchase of Simpluna plus was also a huge win for this app. So many apps for period tracking had unnecessary features that came at a monthly cost. And this app is not only simple and clear, but its design is also calming and sophisticated!
Perfect!
sailorbunny12
This app is perfect, I have no qualms whatsoever. It figured out my cycle faster than I’d expected and now is perfectly lined up every time. It doesn’t ask me all those questions about like blood flow and other symptoms that I overthink which is great, but still has a space for notes which I love to use to write symptoms and sometimes around when it started. It’s great and exactly what I want in a period app! It also lets you set a lot of notifications to remind you when it’s coming up. So so happy I got it, no more soiling my clothes for me!
GREAT for just a simple period tracker
AVA😘💋
I was looking for just a period tracker, none of the “most fertile now” kinda stuff and i would say this is a great app for that! It’s completely free, no adds and I love how easy it is to mark when your period started and when it ended and you can take little notes on how it was. It really helps to get an idea of what is normal when you’re on your period! I would say that it is great for teens who are just starting their cycle or it could be good for adults who have had their cycle for a while.
- Fixed an issue with the display of calendar marks
Version 5.0.1
The developer, Omoidasu, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Purchases
Contact Info
User Content
Identifiers
Sensitive Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Omoidasu, Inc.
Size
179.5 MB
Category
Health & Fitness
Compatibility
Requires iOS 16.4 or later.
iPhone Requires iOS 16.4 or later.
iPad Requires iPadOS 16.4 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
