# Period Log — Cycle Tracker & Moon Calendar

> Menstrual cycle and fertility tracker with predictive calendar and health logging. (iPhone/iPad app by 倩 赵.)

- Source: https://appshunter.io/ios/app/period-log/id494474881 (this page in markdown: same URL + `.md`)
- Developer: [倩 赵](https://appshunter.io/developer/376557917)
- Category: Health & Fitness, Medical
- Price: Free
- Rating: 4.70/5 from 1,208 App Store ratings · 462 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 54 MB
- Languages: Russian, Hindi, Vietnamese, American English, Arabic, Hungarian, Dutch, Danish, Hebrew, Indonesian and 18 more
- Released: 2012-01-13
- Data updated: 2026-08-31
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/period-log/id494474881/reviews.md

## What is Period Log?

Period Log is designed for you to track and predict your fertility and menstrual cycles.

With Period Log, you can track almost everything about your cycles, period days, cycle days, fertile days, ovulation day, flow, mood, symptom, intimate, spotting, breast self-exam, weight, temperature and notes.

Period Log will make you life much easier. You can view details of your cycles at a glance, refer predicting periods to make well plans of date, private life, having baby, visiting doctor, and travel etc, doing something advance for important exam, match etc.

Key Features:
⁃ Screen name is P. Log.
⁃ Track period, ovulation, fertile days, moods, weight and symptoms etc.
⁃ Predict following periods, ovulation and fertile days.
⁃ Two modules are provided to predict your periods, default days and average days.
⁃ Calendar design and icons to show your info visually.
⁃ Add or edit periods easily.
⁃ Receive reminder if periods is comings.
⁃ Receive reminder of breast self-exam.
⁃ Passwords to protect your info.
⁃ Supports Touch ID as passcode.
⁃ Help documents to help you how to use this app.
⁃ Pregnancy module is provided, calculates delivery date and days remains.
⁃ Support units of lbs and kg, °F and °C.
⁃ Supports Wifi backup and restore.
⁃ Supports Dropbox backup and restore.
⁃ Supports transferring data to Health app.
⁃ Supports universal version.
⁃ Supports Apple Watch version.

Let’s your periods in control and prepare well when those days are coming, instead of being overwhelmed by her sudden visit.

Please contact us by this email userfeed@vip.tom.com if you have any question or suggestion.

## Key features

- Track period, ovulation, and fertile days
- Predict future cycles and fertile windows
- Log moods, symptoms, and flow
- Visual calendar with icons
- Customizable reminders
- Password and Touch ID protection
- Pregnancy mode with due date calculation

## What do users think of Period Log?

Overall sentiment: positive

**Pros**

- 👍 Easy to use
- 📆 Helpful for tracking cycles
- ⏰ Accurate period predictions
- 📝 Ability to log symptoms and moods
- 💻 Simple and straightforward interface
- 🤰 Useful for family planning
- 🏥 Helpful for doctor appointments

**Cons**

- 💸 Too many ads in free version
- 🐛 Occasional bugs or glitches
- 🔄 Difficulty editing or deleting entries
- 🔍 Limited customization options
- 📊 Inaccurate ovulation predictions for some users

**Commonly reported bugs**

- Data not saving properly after app updates
- Calendar view not displaying all entries correctly
- Notifications not working as expected

**Most requested features**

- Option to remove ads
- Ability to sync data across devices
- More detailed symptom and mood tracking
- Customizable reminders and notifications
- Integration with other health apps

## Recent user reviews (10 of 462)

All indexed reviews: https://appshunter.io/ios/app/period-log/id494474881/reviews.md

### 5/5 — Brilliant!

*2026-08-17, version 8.0*

Love this app, can plan ahead to see when period is due

### 5/5 — Accurate

*2026-08-13, version 8.0*

Pretty accurate. Used to think my period is irregular but now I know it is regular. App is pretty accurate with myvperiod days too.

### 5/5 — Very handy

*2026-07-20, version 8.0*

Very handy especially with PCOS

### 5/5 — Mel

*2026-07-16, version 8.0*

Using this App made it easier for me to determine a more precise day for when my cycle may start. It’s great for managing your cycles especially If your doctor ask you that one question , “ when was the last day of your last menstrual cycle?” Now you can answer with confidence.

### 1/5 — Ads ruined this app

*2026-07-13, version 8.0*

This app was great until it was over run by ads. It’s basically non-functional now and inaccessible. There isn’t even an option to pay and remove the ads.

### 5/5 — Great app!

*2026-07-09, version 8.0*

Absolutely love it! I have very irregular periods or so I "thought" & this app really helps me keep up with my cycle. A MUST have! Don't know how I ever lived without it

### 5/5 — 🩷🩵

*2026-07-06, version 8.0*

good tracker

### 5/5 — An essential app for all menstruating women!

*2026-07-03, version 8.0*

This app has been with me for years and I couldn't be without it. Great for knowing when my period is due and monitoring moods

### 5/5 — Brilliant!

*2026-06-27, version 8.0*

Simple and free! Used it for over 12 years

### 5/5 — Fabulous

*2026-06-27, version 8.0*

Great having the history/trend

## Frequently asked questions about Period Log

### What does Period Log do?

Period Log is an application designed to help you track and predict your menstrual cycles, fertility, and ovulation. It allows you to log various details about your cycles, including period days, flow, mood, symptoms, and more, providing insights and predictions for better planning.

### What are the key features of Period Log?

Key features include tracking period, ovulation, and fertile days, predicting future cycles, logging moods and symptoms, a visual calendar, customizable reminders for periods and breast self-exams, password protection with Touch ID support, and a pregnancy module for due date calculation.

### Is Period Log free to use?

The application is free to use, supported by advertisements. While the core tracking and prediction features are available without charge, users may encounter ads within the app.

### What devices is Period Log compatible with?

Period Log is a universal version supporting both iPhone and iPad. It also offers an Apple Watch version for convenient tracking on your wrist. Data can be backed up and restored via Wi-Fi or Dropbox, and it supports transferring data to the Health app.

### How can Period Log help with planning?

By accurately tracking and predicting your cycles, Period Log helps you make well-informed plans for various aspects of your life. This includes planning for your private life, potential pregnancy, doctor visits, travel, or important exams and matches, allowing you to prepare in advance.

## Version history (last 5 releases)

### 8.0 — 2026-01-17

⁃ Compatible with iOS 26.
⁃ Adds Catalan, Danish, Hebrew, Hungarian, Romanian, Slovak, Swedish and Vietnamese.
⁃ Other minor bugs fixed.

### 7.1 — 2025-01-15

⁃ Compatible with iOS 18.
⁃ Other minor bugs fixed.

### 7.0 — 2023-11-17

⁃ Compatible with iOS 17.
⁃ Adds Korean, Arabic, Czech, Dutch, Indonesian, Polish, Thai, Traditional Chinese, Hindi and Malay.
⁃ Other minor bugs fixed.

### 6.1 — 2023-01-17

⁃ Compatible with iOS 16.
⁃ Other minor bugs fixed.

### 6.0 — 2022-01-25

⁃ Compatible with iOS 15.
⁃ Other minor bugs fixed.

## Apps similar to Period Log

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Premom-Ovulation Tracker, PCOS](https://appshunter.io/ios/app/premom-ovulation-tracker-pcos/id1279295922) | 4.8 (58,885) | Free | Health & Fitness |
| [Life - Period Tracker Calendar](https://appshunter.io/ios/app/life-period-tracker-calendar/id703547387) | 4.8 (62,793) | Free | Health & Fitness |
| [Clue Period & Cycle Tracker](https://appshunter.io/ios/app/clue-period-and-cycle-tracker/id657189652) | 4.8 (402,315) | Free | Health & Fitness |
| [Flo Cycle & Period Tracker](https://appshunter.io/ios/app/flo-cycle-and-period-tracker/id1038369065) | 4.7 (1,947,731) | Free | Health & Fitness |
| [Moody Month: Hormone Tracker](https://appshunter.io/ios/app/moody-month-hormone-tracker/id1414905792) | 4.6 (881) | Free | Health & Fitness |
| [Femometer Fertility Tracker](https://appshunter.io/ios/app/femometer-fertility-tracker/id1269972832) | 4.9 (70,208) | Free | Health & Fitness |

## More apps by 倩 赵

- [Dog Buddy Pro](https://appshunter.io/ios/app/dog-buddy-pro/id444082194)
- [Cat Buddy Pro](https://appshunter.io/ios/app/cat-buddy-pro/id446066704)
- [Dog Buddy - Activities & Log](https://appshunter.io/ios/app/dog-buddy-activities-and-log/id448923379)
- [Cat Buddy](https://appshunter.io/ios/app/cat-buddy/id449438097)
- [Baby Kicks Monitor Pro](https://appshunter.io/ios/app/baby-kicks-monitor-pro/id452964061)
- [Blood Pressure Companion Pro](https://appshunter.io/ios/app/blood-pressure-companion-pro/id453210774)

All apps by 倩 赵: https://appshunter.io/developer/376557917

## Related topics

[period log](https://appshunter.io/ios/topics/period-log) · [period log pro](https://appshunter.io/ios/topics/period-log-pro)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*