Period Diary: Cycle Tracker

Name: Period Diary: Cycle Tracker
Rating: 4.1 (428 reviews)
Author: Sasa Kolda

Private Period & Ovulation Log

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

428 Ratings
Age Rating

9+
Years
Category

Health & Fitness
Developer

Sasa Kolda
Language

EN
English
Size

50.4
MB

The only privacy first Period Diary - no account required, no cloud sync, and your health data stays on your phone. Track periods, symptoms, and ovulation privately. YOUR PRIVATE DATA NEVER LEAVES YOUR PHONE. Period Diary helps you track your menstrual cycle with privacy at the center. No account. No sign-up. No personal data collection. Your cycle data stays on your phone. Track what matters: Period start and end dates Cycle length and trends Ovulation day and fertile window estimates Daily symptoms, mood, flow, and notes Calendar view for a clear cycle timeline Reminders for upcoming period and ovulation days Built for clarity and control: Fast daily logging Easy-to-read calendar and cycle insights Helpful predictions based on your logged history Simple experience without unnecessary complexity Privacy-first by design: No account needed No personal profile required No exporting your health data to external servers Your entries remain on your device Whether you want a simple period tracker, an ovulation calendar, or a cycle log with symptom tracking, Period Diary gives you useful insights while respecting your privacy.

Ratings & Reviews

4.1

out of 5

428 Ratings

Very simple like it should be
10/01/2023

alsoadeveloper
I picked this app because the developer said your data doesn’t leave your phone. (Period math isn't so complex it needs to live on a server! I’m disturbed by all the other apps that take your info.) I was inclined to believe it because the the interface looked dignified and simple, made by one person and not a data mining company. App works great. I open the app to check when my period is supposed to start, I open to log when it does start, and I open to update the log to when it actually ended. You can adjust your standard period length and it will update its predicted dates, and if your period changes this month it will update future predictions accordingly.
Very simple like it should be
10/01/2023

alsoadeveloper

I picked this app because the developer said your data doesn’t leave your phone. (Period math isn't so complex it needs to live on a server! I’m disturbed by all the other apps that take your info.) I was inclined to believe it because the the interface looked dignified and simple, made by one person and not a data mining company. App works great. I open the app to check when my period is supposed to start, I open to log when it does start, and I open to update the log to when it actually ended. You can adjust your standard period length and it will update its predicted dates, and if your period changes this month it will update future predictions accordingly.
I love it
12/31/2023

z12oey
I love this app because I use to have flo and it was a good app but it was a little bit complicated but this app is not complicated but I love it and every time it tells me exactly when I’m going to start my period and when I’m going to end it and so far it’s been right
I love it
12/31/2023

z12oey

I love this app because I use to have flo and it was a good app but it was a little bit complicated but this app is not complicated but I love it and every time it tells me exactly when I’m going to start my period and when I’m going to end it and so far it’s been right
Can’t set last period end date.
06/29/2021

annoyedbecauseallnamestaken
I just downloaded this, happy to find an app that doesn’t track ridiculous things like kissing. I’d even happily pay $5 to remove ads if it works. However, the app defaults to the current date for your last period and the number of days out your period typically lasts as the end date. I can change the start date to the actual date of my last period, but i cannot change the end date. Every time I try, it goes back to the last day of the month, indicating a 27 day period... There is no support on the website.
Can’t set last period end date.
06/29/2021

annoyedbecauseallnamestaken

I just downloaded this, happy to find an app that doesn’t track ridiculous things like kissing. I’d even happily pay $5 to remove ads if it works. However, the app defaults to the current date for your last period and the number of days out your period typically lasts as the end date. I can change the start date to the actual date of my last period, but i cannot change the end date. Every time I try, it goes back to the last day of the month, indicating a 27 day period... There is no support on the website.
Could be great
01/23/2022

Rose- 29484$482&28!43&&4&
Best design out of all the apps in this category- ie not designed for a 12 year old. Howe ever it’s poorly made. The tracker is useless and glitchy. I e been using this app for over a year and if you just let it run it’s course and you have a consistent period then it’s OK. If you want to actually record start and end dates good luck! The app literally will not allow you to alter period start and end dates. It’s basically impossible to use. I think the most recent update actually made it worse. Will be deleting.
Could be great
01/23/2022

Rose- 29484$482&28!43&&4&

Best design out of all the apps in this category- ie not designed for a 12 year old. Howe ever it’s poorly made. The tracker is useless and glitchy. I e been using this app for over a year and if you just let it run it’s course and you have a consistent period then it’s OK. If you want to actually record start and end dates good luck! The app literally will not allow you to alter period start and end dates. It’s basically impossible to use. I think the most recent update actually made it worse. Will be deleting.

Improving the app for you, enhancing cycle predictions and design

Version 3.0.1 May 25

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You

The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller: Sasa Kolda
Size: 50.4 MB
Category: Health & Fitness
Compatibility: Requires iOS 15.1 or later.

iPhone
Requires iOS 15.1 or later.

iPad
Requires iPadOS 15.1 or later.

iPod touch
Requires iOS 15.1 or later.

Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English
Age Rating: 9+

9+

Learn More

Contains
Advertising
Health or Wellness Topics
In-App Purchases: Yes

Period. Premium Lifetime $4.99

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