# Simpluna Simple Period Tracker — Easy Period Calendar, No Ads

> Simple menstrual cycle tracker and predictor with optional advanced features. (iPhone/iPad app by Omoidasu, Inc..)

- Source: https://appshunter.io/ios/app/simpluna-simple-period-tracker/id1528652349 (this page in markdown: same URL + `.md`)
- Developer: [Omoidasu, Inc.](https://appshunter.io/developer/1476625101)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 4.70/5 from 258 App Store ratings · 175 written reviews indexed
- Age rating: 12+
- Requires: iOS 16.4 · 94 MB
- Languages: Korean, Dutch, Danish, German (Germany), Romanian, Malay, Vietnamese, Norwegian Bokmål, Swedish, European Spanish and 14 more
- Released: 2020-08-29
- Data updated: 2026-09-21
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/simpluna-simple-period-tracker/id1528652349/reviews.md

## What is Simpluna Simple Period Tracker?

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.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Simpluna Plus | $10.00 | one-time |
| Data Sharing | $3.99 | one-time |
| Cloud Backup | $1.99 | one-time |
| Simpluna Donation (1) | $1.99 | one-time |
| Simpluna Donation (2) | $3.99 | one-time |
| Simpluna Donation (3) | $8.99 | one-time |
| Simpluna Donation (4) | $24.99 | one-time |
| Simpluna Donation (5) | $79.99 | one-time |
| HealthKit Integration | $2.99 | one-time |


## What do users think of Simpluna Simple Period Tracker?

Overall sentiment: positive

**Pros**

- 🚀 Simple, clear, and easy to use
- 🔒 No ads or unnecessary features
- 👍 Customizable, clean design
- 👍 Accurate period predictions
- 👍 Useful reminders and notifications

**Cons**

- 🐛 Occasional glitches and crashes
- 🔋 Compatibility issues with newer devices

**Commonly reported bugs**

- Login issues after device change
- Incorrect period predictions in some cases

**Most requested features**

- Integration with Apple Health
- Ability to share data with partners
- Option to add notes about sexual activity

## Recent user reviews (10 of 175)

All indexed reviews: https://appshunter.io/ios/app/simpluna-simple-period-tracker/id1528652349/reviews.md

### 5/5 — 좋은데 도형 말고 컬러로 표시하고싶다..ㅠㅠ

*2026-09-11*

앱의 방향성이 심플인건 알겠는데, 직관적이지 않습니다 ㅠㅠ 생리, 배란일, pms별로 컬러 커스텀이 가능하면 좋겠습니다! 점선, 흐린선은 햇갈리기만 할 뿐 눈에 안들어옵니다..ㅠㅠ
이 부분만 빼면 딱 필요한 기능만 있어서 최고의 앱!

### 5/5 — 필요한 기능만 쏙쏙 있음

*2026-08-29*

진짜 딱 필요한것만 있고 헷갈릴것도 없어서 좋긴 했어요.그런데 개선할점이 몇개 있긴합니다.생리 양이나,증상(생리통이 있는지 없는지),점상질출혈이 있는지도 추가하면 너무 좋을것 같아요.그러면 다음 예정일때 언제 증상이 나타나고 어디가 아픈지 알수 있으니까 훨씬 편리할것 같습니다.그래도 완전 편리하고 좋아요!

### 5/5 — 최고의 어플

*2026-06-21*

여러가지 생리 어플 사용해봤는데 이게 최고에요 엄청 깔끔하고 필요한 기능만 있고 주기도 진짜 잘맞아요 어플 유료결제 해본거 처음인데 너무너무 잘쓰고 있어요 감사합니다🤍

### 5/5 — 너무 조아요!!

*2026-05-23*

제가 생리 주기가 제각각이고 안 하고 건너뛰는 달도 있어서 예정일은 필요없고, 그냥 기록용으로 쓰고있는데 앱이 심플하면서 예쁘고 이 아이콘? 그것도 심플하구 예뻐서 너무 잘 쓰고있어요 ㅠㅠㅠ 앱 사용한지 2년 좀 넘었는데 이렇게 꾸준히 기록하니깐 넘 편하구 메모 기능도 있어서 더 좋아요!! 그리고 생리를 언제 며칠씩 했는지 한번에 보여주는 기능도 있어서 넘 편해여👍

### 5/5 — Simplicity and functionality!

*2026-05-09, version 4.0.3*

Finally, a cycle tracker that provides just what it’s ment to.  No annoying ads or overwhelm features, just simple tool for tracking your cycles. Perfect! Do not change a thing!

### 5/5 — Great App

*2026-05-03*

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.

### 1/5 — Deleted?

*2026-04-23*

I logged in and my data was gone and it told me I didn’t have an account. Now I have no historical information and need to start all over with a different app. Very frustrating

**Developer response:** We’re sorry for the inconvenience. We’ll check this on our side, so please send the email address you used when logging in to Simpluna to simpluna-support@omoidasu.co.jp.

### 5/5 — 심플!!!!

*2026-04-19*

진짜 엄~~~~~청 심플해요 다른 것들은 막 로그인도하고 왜하는건지도 모르는 나이인증같은것도하던데 이건 걍 엄청 심플!!! 질문도 진짜 다 필요한 것들만 묻고 너무 조흠!!!! 친구도 이거 보더니 뭐냐고 알려달라함호호 쭉 이대로만 가면 조켓네요

### 5/5 — Best period tracker

*2026-04-08, version 3.9.0*

Honestly the best period tracker I have ever had. I didn’t want all the fluffy extra stuff. All I wanted to do is track my period and this app does exactly that with also giving proper period predictions as well. Super accurate and easy to use.

### 5/5 — Great!!

*2026-03-20*

This app is very simple and straightforward. There aren’t hundreds of ads. There also aren’t too many settings or options. The app predicts my cycle pretty well. If you are looking for an app that predicts everything, like ovulation and stuff, this isn’t it, but it’s a great app for just main menstruation.

## Frequently asked questions about Simpluna Simple Period Tracker

### What does Simpluna do?

Simpluna is a simple menstrual cycle tracker that allows you to record your period dates and predicts your next period. It displays this information on a calendar, offers optional notifications, and allows you to leave notes on specific dates. The app is designed with a simplified interface to be easy to use daily.

### What are the key features of Simpluna?

Key features include intuitive period date input, calendar-based prediction of future periods, the ability to record past periods, customizable notifications for upcoming periods, and an optional passcode or Face ID lock for privacy. It also supports data backup and offline functionality.

### Is Simpluna free to use?

The core functionality of Simpluna, including basic period tracking and prediction, is free. However, advanced features such as ovulation day prediction, color themes, and customizable input fields require a one-time purchase of Simpluna Plus. This model is chosen to avoid ads and provide a stress-free user experience.

### What are the advanced features available with Simpluna Plus?

Simpluna Plus unlocks features like ovulation day prediction and management, PMS period display, prediction summary, customizable input fields for symptoms or body temperature, custom notifications, pill reminders, widgets, and the ability to register historical data for the last 5 years.

### Can I use Simpluna offline?

Yes, Simpluna functions offline or under poor internet conditions. This ensures you can track your cycle and access predictions even without an active internet connection, making it a reliable tool for daily use.

## Version history (last 5 releases)

### 4.7.1 — 2026-09-18

- Increased the limits for keywords and custom fields (Simpluna Plus)
- Improved stability

### 4.7.0 — 2026-09-10

- You can now import period records and notes from a CSV file
- Added a date range selector and cycle length chart to cycle history
- A field for recording spotting is now available

### 4.6.2 — 2026-09-03

- You can now record a period start up to 3 days in advance
- You can now change the size of calendar marks
- Improved the display of predicted period dates and widgets
- Improved the calendar layout on iPad

### 4.6.1 — 2026-08-31

- Added multiple selection and decimal place settings for custom fields
- Fixed an issue with calendar swiping on iPad
- Fixed calendar layout issues

### 4.6.0 — 2026-08-28

- Improved custom field input in Simpluna Plus, with one-tap keyword selection and multiple log entries per day
- You can now set the display priority of calendar marks
- Added support for iPad
- Improved performance and layouts on some screens

## Apps similar to Simpluna Simple Period Tracker

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Bom Calendar - Period tracker](https://appshunter.io/ios/app/bom-calendar-period-tracker/id1190438906) | 4.6 (1,562) | Free | Health & Fitness |
| [Easy Period - Lite Tracker](https://appshunter.io/ios/app/easy-period-lite-tracker/id1209759365) | 4.5 (7,494) | Free | Health & Fitness |
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| [Menstrual cycle tracker - Days](https://appshunter.io/ios/app/menstrual-cycle-tracker-days/id1621496253) | 4.5 (40) | Free | Health & Fitness |
| [Ovulation Calendar: Period Log](https://appshunter.io/ios/app/ovulation-calendar-period-log/id1463320246) | 4.5 (17) | Free | Health & Fitness |
| [Period Tracker: Cycle Calendar](https://appshunter.io/ios/app/period-tracker-cycle-calendar/id1541331292) | 4.6 (144) | Free | Health & Fitness |

## More apps by Omoidasu, Inc.

- [Meditation App Tadayou](https://appshunter.io/ios/app/meditation-app-tadayou/id1536249222)

All apps by Omoidasu, Inc.: https://appshunter.io/developer/1476625101

## Related topics

[simpluna period calendar app](https://appshunter.io/ios/topics/simpluna-period-calendar-app) · [simple period tracker](https://appshunter.io/ios/topics/simple-period-tracker) · [initio](https://appshunter.io/ios/topics/initio)

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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 2026-09-21.*