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Cube is the simplest period tracker. You can log your days quickly, and Cube lets you know when your next period is coming.
It's simple, cute, and easy to use.
And because of its friendly design, you don't feel like using app for your period.

◎ Quick Data Entry
All you have to do is to log your period (Start date and duration). That's all!
Cube is an easy-to-understand app that dared to remove complex functions.

◎ Little Cubes Will Tell Your Next Cycle
There are many little cubes in Cube app. They'll form a number, and tell you how many days till your next cycle.
Cute cubes will cheer you up in the days when you tend to feel down.

◎ Monthly/Yearly Calendar
Cube shows you the past and future period dates in a simple year-view calendar.
You can also see your events from Apple's Calendar app in a month-view calendar. It'll come in handy when you check your schedule.


・ Easy-to-use period tracking (Log only start date and duration of your period)
・ List of your cycles
・ Monthly/yearly calendar shows your past and future period dates
・ Reminders of your next period, PMS, and ovulation (Premium)
・ Integration with Apple's Health app (write data and import existing Menstruation data from the Health app)
・ 13 themes and custom app icons to match themes (2 themes are free)

What’s New

Version 1.1.1

Bug fixes

Ratings and Reviews

4.3 out of 5
149 Ratings
149 Ratings

Editors’ Notes

Little cute blocks to help you keep tabs on your monthly cycle.

LnknPrkSoldier ,

Paid but not working

My daughter loves the app so much that I pd for the upgrade version but it’s still not giving access and is still asking me to pay. Please help and once it works I’ll give 5 stars. Ty.


About the Age Rating

I love this app. But I’m concerned on the age rating. The age rating is 12+ but I’m 11 and some girls can get their period WAY before age 12. I had my first period when I was 10. Just letting my opinion out. Love the app though!


Flask LLP
21.3 MB
Health & Fitness
Requires iOS 10.3 or later. Compatible with iPhone and iPod touch.
English, Japanese
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
Infrequent/Mild Mature/Suggestive Themes
© Flask LLP
In-App Purchases
  1. Premium $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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