Bom Calendar - Period tracker: iPhone vs Android
Bom Calendar - Period tracker by bomcomes Corp. is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
4.6 ★
110k ratings, both stores
Measured
Best rank now
#38
iPhone · 
Health & Fitness Grossing
Health & Fitness GrossingMeasured
App Store
App details
App ID
1190438906
Publisher
bomcomes Corp.
Publisher country
South Korea
On the store since
Feb 2017
9 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
12+
Languages
3
EN JA KO
Size
132 MB
Also listed in
Productivity
Google Play
App details
App ID
kr.co.ll2016.theday
Publisher
bomcomes
Publisher country
South Korea
Content rating
Teen
Bom Calendar - Period tracker downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | – | 1M+ |
| Google Play | – | 500k+ Measured |
| Total | – | 1M+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Bom Calendar - Period tracker makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 2 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.4 ★ | 81k |
| Google Play | 4.9 ★ | 29k 97 written reviews |
| Both stores | 4.6 ★ weighted by ratings | 110k |
About Bom Calendar - Period tracker
- 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
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
Bom Calendar - Period tracker iPhone
봄 캘린더 - 생리, 피임, 임신 준비
Bom Calendar - Period tracker is #38 in Health & Fitness Grossing in South Korea and charting in 1 of 30 countries we track.
Updated 25 Oct 2026 · rankings refresh through the day
Developerbomcomes Corp.
CategoryHealth & Fitness
PriceFree
Released
Rating★ 4.4 (81k)
Version2.8.1
Age rating12+
First seen by us 25 Sep 2026
25 Sep 2026Installs (est.)1M+ worldwide
Rating
4.4 ★
81k ratings
Measured
Best rank now
#38
Health & Fitness GrossingMeasured
Bom Calendar - Period tracker on the App Store
App details
App ID
1190438906
Publisher
bomcomes Corp.
Publisher country
South Korea
On the store since
Feb 2017
9 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
12+
Languages
3
EN JA KO
Size
132 MB
Also listed in
Productivity
Bom Calendar - Period tracker downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Bom Calendar - Period tracker makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 2 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| South Korea | Health & FitnessGrossing | #38 |
Apps near Bom Calendar - Period tracker on the chart
Health & Fitness Grossing, around #38.
Ratings
App Store, worldwide.
Rating
4.4 ★
81k ratings
Measured
Ratings
81k
Measured
About Bom Calendar - Period tracker
- 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
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
Latest updates
2.8.1
- Added calendar search. Find your records by content, date range, and record type.
- Added Bom Point attendance.
- Open pregnancy management directly from the calendar menu.
- Improved app stability and usability.
2.7.3
- 캘린더에 표시할 기록과 일정을 선택할 수 있습니다.
- 앱 안정성 및 사용성을 개선했습니다.
2.7.2
- Fixed an issue where recorded periods did not appear in the calendar during pregnancy.
- Improved app stability and usability.
More from bomcomes Corp.
Bom Calendar - Period tracker Android
Not in a tracked Google Play top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
Developerbomcomes
CategoryHealth & Fitness
PriceFree
Released
Installs500k+
Rating★ 4.9 (29k)
Updated
Content ratingTeen
Rating
4.9 ★
29k ratings
Measured
Bom Calendar - Period tracker on Google Play
App details
App ID
kr.co.ll2016.theday
Publisher
bomcomes
Publisher country
South Korea
Content rating
Teen
Bom Calendar - Period tracker downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Bom Calendar - Period tracker makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 2 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Not in a Google Play top chart right now. | ||
Ratings
Google Play, worldwide.
Rating
4.9 ★
29k ratings
Measured
Ratings
29k
Measured
Written reviews
97
Measured
About Bom Calendar - Period tracker
- 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, calendar scroll direction, visibility – 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, Facebook 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 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. From Period, Birth Control Pills, Ovulation Test, Manual Ovulation Entry, and Pregnancy Info to Flow, Basal Body Temperature, Sexual Activity, Cervical Mucus, Weight, Mood, Symptoms, and Pills—export your body's changes as a PDF file to share with your doctor or keep for your personal records. Even the most complex logs are neatly organized in a single, professional report.
[Premium]
- Share mood
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, calendar scroll direction, visibility – 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, Facebook 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 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. From Period, Birth Control Pills, Ovulation Test, Manual Ovulation Entry, and Pregnancy Info to Flow, Basal Body Temperature, Sexual Activity, Cervical Mucus, Weight, Mood, Symptoms, and Pills—export your body's changes as a PDF file to share with your doctor or keep for your personal records. Even the most complex logs are neatly organized in a single, professional report.
[Premium]
- Share mood
What's new in 2.8.0
- Improved app stability and usability.