Period Log vs Simpluna Simple Period Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Period Log
Track and predict your menstrual cycles, fertility, and ovulation. Log period days, flow, mood, symptoms, and more. Receive timely reminders and protect your data with password protection.
- 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
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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.
Simpluna Simple Period Tracker
This app helps you track your menstrual cycle with simple period date entry and prediction. It offers a clean interface with no ads, allowing you to record past periods, get notifications, and secure your data. Optional paid features unlock advanced tracking and customization.
- Simple period date input and prediction
- Calendar view of past and future periods
- Customizable period notifications
- Optional advanced features with Simpluna Plus
- Passcode and Face ID app lock
- Data backup and restore
- Offline functionality
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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. No account is needed for everyday tracking. Your records stay on your device unless you choose to use optional cloud backup or data sharing. Simpluna Plus adds more ways to track and personalize your calendar with a one-time purchase. No subscription. Open the calendar, tap the start or end date, and your next predicted period is shown on the calendar. 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. Over 600,000 downloads! —————— Features —————— Simpluna is an app for recording and predicting your period days. When you launch the app, a calendar appears so you can check your next predicted period and past periods at a glance. By cutting unnecessary features and keeping things as simple as possible, we make sure the app does not get in the way of your daily life. ▶ 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 —————— ▶ 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.
Screenshots
Verdict
The clearest difference is in-app purchases: Period Log at none against Simpluna Simple Period Tracker's 9. Period Log also leads on ratings volume (1.2K vs 258) and device support (4 vs 2). Simpluna Simple Period Tracker's advantage is ads (none vs shown) and update cadence (every 5 days vs every 7 months). On price, rating, review sentiment and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Simpluna Simple Period Tracker sells 9 one-off in-app purchases. Period Log asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Period Log against 4.7 for Simpluna Simple Period Tracker. Both are backed by a comparable volume of ratings — 1.2K and 258 respectively. Written reviews are what separate them: 92% of Period Log's written reviews are positive against 94% of Simpluna Simple Period Tracker's.
Period Log ships an update every 7 months, Simpluna Simple Period Tracker every 5 days. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.
| Parameter | Period Log | Simpluna Simple Period Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.2K ratings) | 4.7 (258 ratings) |
| Positive reviews | 91.8% of reviews | 93.7% of reviews — better |
| Number of ratings | 1.2K — better | 258 |
| Update frequency | Every 7 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 54 MB | 94 MB |
| Age rating | 4+ | 12+ |
| Developer | 倩 赵 | Omoidasu, Inc. |
Customer experience
Period Log
Simpluna Simple Period Tracker
User reviews
Period Log
From 1.2K App Store ratingsWhat we love
- 👍 Easy to use
- 📆 Helpful for tracking cycles
- ⏰ Accurate period predictions
- 📝 Ability to log symptoms and moods
- 💻 Simple and straightforward interface
Room to improve
- 💸 Too many ads in free version
- 🐛 Occasional bugs or glitches
- 🔄 Difficulty editing or deleting entries
- 🔍 Limited customization options
- 📊 Inaccurate ovulation predictions for some users
Simpluna Simple Period Tracker
From 258 App Store ratingsWhat we love
- 🚀 Simple, clear, and easy to use
- 🔒 No ads or unnecessary features
- 👍 Customizable, clean design
- 👍 Accurate period predictions
- 👍 Useful reminders and notifications
Room to improve
- 🐛 Occasional glitches and crashes
- 🔋 Compatibility issues with newer devices
Bugs and requests
Period Log
Reported bugs
3 issues- Data not saving properly after app updates
- Calendar view not displaying all entries correctly
- Notifications not working as expected
Requested features
5 requests- 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
Simpluna Simple Period Tracker
Reported bugs
2 issues- Login issues after device change
- Incorrect period predictions in some cases
Requested features
3 requests- Integration with Apple Health
- Ability to share data with partners
- Option to add notes about sexual activity
In-app purchases
Period Log
No in-app purchases
Simpluna Simple Period Tracker
- Cloud Backup$1.99
- Simpluna Donation (1)$1.99
- HealthKit Integration$2.99
Show 6 moreShow fewer
- Data Sharing$3.99
- Simpluna Donation (2)$3.99
- Simpluna Donation (3)$8.99
- Simpluna Plus$10.00
- Simpluna Donation (4)$24.99
- Simpluna Donation (5)$79.99
Questions
Is Period Log free?
Is Simpluna Simple Period Tracker free?
Which has better reviews, Period Log or Simpluna Simple Period Tracker?
Do Period Log or Simpluna Simple Period Tracker have ads?
Which is updated more often, Period Log or Simpluna Simple Period Tracker?
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