# Bom Calendar - Period tracker — Check your body with period.

> Customizable period and health tracker with accurate cycle predictions. (iPhone/iPad app by bomcomes Corp..)

- Source: https://appshunter.io/ios/app/bom-calendar-period-tracker/id1190438906 (this page in markdown: same URL + `.md`)
- Developer: [bomcomes Corp.](https://appshunter.io/developer/1455604243)
- Category: Health & Fitness, Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 1,561 App Store ratings · 318 written reviews indexed
- Age rating: 12+
- Requires: iOS 15.0 · 120 MB
- Languages: Korean, American English
- Released: 2017-02-24
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/bom-calendar-period-tracker/id1190438906/reviews.md

## What is Bom Calendar?

- Bom Calendar, a unique period tracker you can customize
Get consistent with Bom Calendar! It’s the app you will want to see daily. Ever wondered when your next period will be? What about the chances of pregnancy? How about sexual interactions? Get the answers you want at any time with Bom Calendar. Customize everything from the calendar display, color, app icon, visibility, and order – all to your preference!

- Period, Schedule, To-Do List: All in One App
Accurate period tracking starts here. Add and manage your schedule and to-do-list with just one tap. Get notifications to keep up with your schedule, lunar calendar, and holidays. Save time and make your day more efficient with Bom Calendar.

- Accurate Pregnancy Probability and Period Cycle Estimation
Did you know only 6% of period tracker apps could accurately predict periods? Bom Calendar uses the same standard contraceptive guidelines and period calculation methods used by the American Board of OBGYN for a more accurate pregnancy probability and cycle prediction. 
Learn how to nurture your body. Bom Calendar tracks the female hormones that change daily to let you know what your mood is, your energy level, memory, focus, comprehension, cravings and more.

- Daily Updates About My Body condition
Let Bom Calendar help! Learn about the symptoms and causes of common illnesses for women and how to respond to them.

- My Special Doctor Keeping Up With My Health
It's easy to let your health slip with your busy day-to-day life. No more worries. With Bom Calendar, you can learn about the symptoms and causes of common illnesses for women and how to respond to them.

- Pregnancy Mode for Health Baby
Get weekly updates on the baby's size, the different changes in you and your baby and tips on what to do. Bom Calendar will support you until your baby comes.

- Easy Weight Tracking
No more complicated weight trackers! Simply enter your weight, and the app will show you the healthy weight range and BMI. Achieve your weight goals with Bom Calendar!

- Keep My Data More Securely and Conveniently
Use your email, Google or Apple accounts for an easy, fast sign-up process. We keep your user data safe on our secure server with an auto-backup/restore function even if you change your phone or reinstall our app.

- Share Your Calendar with a Special Someone

- Share Your Calendar with a Special Someone
Share your calendar to securely and easily share your days. You can customize what information you want to send and when important information is updated

- Export Your Data as a PDF Report
Generate comprehensive health reports based on your recorded data. Export your body's changes—including periods, medication, mood, and symptoms—into a professional PDF to share with your doctor or keep for your records. Even complex logs are neatly organized into a single, easy-to-read report.

[Premium]
- Share mood and health status with friends.
- Export menstrual cycles and basal body temperature as a PDF.
- Enjoy an ad-free experience.
- Simultaneous login on smartphones and tablets.
- Future premium features included at no extra cost.

Privacy policy : https://bomcomes.com/bomcalendar/en/privacy.html
Terms of service : https://bomcomes.com/bomcalendar/en/terms.html
How to "View/Change/Cancel" Subscription : https://support.apple.com/HT202039

For questions or issues while using Bom Calendar, please e-mail help@bomcomes.com

## Key features

- Accurate period and pregnancy prediction
- Customizable calendar display and app icon
- Integrated schedule and to-do list
- Daily body condition and mood tracking
- Pregnancy mode with weekly updates
- Easy weight tracking and BMI calculation
- Secure data backup and sharing

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium | $2.39 | per month |
| Premium(6months) | $11.99 | per 6 months |
| Premium | $21.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Ad-Free | $29.99 | one-time |


## What do users think of Bom Calendar?

Overall sentiment: positive

**Pros**

- 👍 Accurate and reliable tracking
- 👍 Helpful information and tips
- 👍 Customizable and user-friendly
- 👍 Detailed and comprehensive
- 👍 Useful for family planning
- 👍 Simple and clean design

**Cons**

- 🙁 Occasional issues with data sync/backup
- 🙁 Some users dislike the ads
- 🙁 Concerns about data privacy

**Commonly reported bugs**

- App crashing or not opening on some devices
- Inaccurate period predictions for some users

**Most requested features**

- Add more mood and symptom options
- Integrate with other health apps
- Provide more detailed analytics and charts
- Allow users to export data

## Recent user reviews (10 of 318)

All indexed reviews: https://appshunter.io/ios/app/bom-calendar-period-tracker/id1190438906/reviews.md

### 5/5 — Perfect App for me

*2026-06-24, version 2.6.2*

this app is what I have been really looking for…Thank you!!

### 3/5 — 임신관련

*2026-05-14, version 2.6.1*

생리주기관련 안내는 좋은데 임신관련주차정보에 틀린내용이 너무많아요

### 5/5 — 임신중 이라는 체크가 있으면 좋겠어요!!

*2026-03-09, version 2.5.3*

임신중에는 생리가
안오는데 자꾸 생리안한다고 알림이 떠요 임신중이라는
체크가 있으면 좋겠어요

### 5/5 — 8년째 쓰고있고 너무너무 좋습니다.

*2026-01-27, version 2.5.2*

다만 한번 결제로 영원히 광고 제거하고싶은데 프리미엄은 계속 사야해서 주저됩니다...다른 구독 방식도 검토해주셨으면 좋겠습니다.

### 2/5 — 광고창버그

*2025-12-25, version 2.5.1*

처음 앱 시작하면 뜨는 광고 팝업이 며칠째 안사라져요

### 3/5 — 광고가 사라지지 않음

*2025-12-22, version 2.5.1*

평소에 너무 잘 쓰고 있었는데, 광고가 뜨면  닫기 버튼이나 오늘하루 보지 않기가 버튼이 안 눌러짐 그래서 지금 사용하지 못 함

### 1/5 — 광고가 닫기해도 안사라져요

*2025-12-19, version 2.5.1*

어플도 지우고 다시 깔았는데 광고 끄기도 안눌리고 오늘 하루 안보기도 안눌려요. 어플사용이 불가능 합니다.

### 5/5 — 짱짱

*2025-12-10, version 2.4.7*

여자가 써야함

### 5/5 — accurate and reliable

*2025-12-04, version 2.4.7*

I have been using this application for over three years since their tracking system is very accurate. It is easy to transfer the info to the new phone when you set up the login.

### 5/5 — 좋아요

*2025-11-18, version 2.4.7*

짱조아요!

## Frequently asked questions about Bom Calendar

### What does Bom Calendar do?

Bom Calendar is a period tracker that helps you monitor your menstrual cycle, predict your next period, and estimate pregnancy probability. It also allows you to log daily body conditions, mood, symptoms, and weight, providing insights into your overall health. The app offers customizable features and secure data management.

### How accurate are the period and pregnancy predictions?

Bom Calendar uses the same standard contraceptive guidelines and period calculation methods employed by the American Board of OBGYN. This approach aims to provide more accurate pregnancy probability and cycle predictions compared to many other period tracker apps.

### Is Bom Calendar free to use?

The app offers a free version with core tracking features. However, certain premium features, such as sharing mood and health status with friends, exporting menstrual cycles and basal body temperature as a PDF, and enjoying an ad-free experience, are available through in-app purchases.

### What devices is Bom Calendar compatible with?

The description mentions sign-up options via email, Google, or Apple accounts, and secure data backup/restore functions. This suggests compatibility with iOS and Android devices, as these are the primary platforms for such account integrations and app installations.

### Can I share my data with my doctor?

Yes, you can export your recorded data, including periods, medication, mood, and symptoms, into a professional PDF report. This report can be neatly organized and easily shared with your doctor for medical records or consultations.

## Version history (last 5 releases)

### 2.6.5 — 2026-08-03

- Added Bom Point benefits. (Earn points by watching ads and exchange them for various passes.)
- Added period and weight trend charts.
- Added unified search to help you quickly find menus and settings.
- Improved recurring schedule settings.
- Improved app stability and usability.

### 2.6.4 — 2026-07-08

- Improved app stability and usability.

### 2.6.2 — 2026-06-13

- Added a lifetime ad-free option. (Enjoy the app without ads.)
- Improved app stability and usability.

### 2.6.1 — 2026-04-22

- Improved app stability and usability.

### 2.6.0 — 2026-04-16

- Improved app stability and usability.

## Apps similar to Bom Calendar

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Period Tracker Period Calendar](https://appshunter.io/ios/app/period-tracker-period-calendar/id896501514) | 4.9 (172,779) | 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 |
| [Life - Period Tracker Calendar](https://appshunter.io/ios/app/life-period-tracker-calendar/id703547387) | 4.8 (62,793) | Free | Health & Fitness |
| [Period Tracking Calendar](https://appshunter.io/ios/app/period-tracking-calendar/id318894849) | 4.6 (10,639) | 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 |
| [Premom-Ovulation Tracker, PCOS](https://appshunter.io/ios/app/premom-ovulation-tracker-pcos/id1279295922) | 4.8 (58,885) | Free | Health & Fitness |

## More apps by bomcomes Corp.

- [Bom Diary - My Favorite Diary](https://appshunter.io/ios/app/bom-diary-my-favorite-diary/id1502873903)

All apps by bomcomes Corp.: https://appshunter.io/developer/1455604243

## Related topics

[iperiod lite period tracker](https://appshunter.io/ios/topics/iperiod-lite-period-tracker)

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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 2026-08-27.*