280days: Pregnancy Diary Android
280days: Pregnancy Diary is #5 in Parenting Free on Google Play in Japan and charting in 3 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
Developeramane factory inc.
CategoryParenting
PriceFree
Released
Installs1M+
Rating★ 4.5 (40k)
Updated
Content ratingEveryone
Rating
4.5 ★
40k ratings
Measured
Best rank now
#5
Parenting FreeMeasured
280days: Pregnancy Diary on Google Play
App details
App ID
com.amanefactory.totsukitoka
Publisher
amane factory inc.
Content rating
Everyone
Tech stack
Trackers and permissions of build v3.3.3, from the εxodus privacy report (CC BY-SA).
Trackers
6
Permissions
36
Trackers
Full permission listProSee plans
280days: Pregnancy Diary 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.
Where 280days: Pregnancy Diary's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
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.
In-app revenue
Worldwide, what users spend in 280days: Pregnancy Diary before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How 280days: Pregnancy Diary makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | ParentingFree | #5 |
 South Korea | ParentingFree | #33 |
 United Arab Emirates | ParentingFree | #187 |
Apps near 280days: Pregnancy Diary on the chart
Parenting Free, around #5.
Ratings
Google Play, worldwide.
Rating
4.5 ★
40k ratings
Measured
Ratings
40k
Measured
Written reviews
421
Measured
About 280days: Pregnancy Diary
＼★Enjoy your pregnancy even more★／
A FREE pregnancy record and diary app that you can share with your spouse.
Connecting not only Mommy and Daddy, but also the baby in Mommy's tummy♥
The only app you need to manage your physical condition and medical checkups★
Packed with services and functions that will make your pregnancy more enjoyable, such as baby illustrations that grow based on the number of weeks of your pregnancy, week-by-week pregnancy advice and message cards!
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊Visualize the baby in your tummy with cute illustrations!
Check on the baby in your tummy every day!
The cute illustrations of the baby will make different adorable gestures each time you open the app, and will grow based on the number of weeks of your pregnancy. The baby will also talk whenever you tap on the baby. The baby's lines changes every day, and will send you messages of encouragement and information on the baby's condition.
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊Fully manage your physical condition and memories!
Manage your physical condition and medical checkups daily with just this app!
By recording your physical condition and medical checkup results, you can manage your ultrasound photos and weight records all at once. In addition, you can save your maternity photos and memories of your pregnancy as a photo diary together with your spouse.
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊First-time Mommy or Daddy? No problem!
The week-by-week advice in 280days all come with illustrations! Enjoy reading and learning how the baby is growing, how Mommy's physical condition changes and advice on how she could spend her time at each week of her pregnancy.
Mommy's physical condition records and the baby's condition can be shared with Daddy. There are also plenty of advice for Daddy at each week of the pregnancy. 280days will enable Daddy to understand pregnancy better and help improve the communication between couples.
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊All the functions necessary during pregnancy in one app!
This app is fully equipped with functions to support you throughout your pregnancy, such as pregnancy countdown and weight management graphs!
Enjoy your pregnancy even more by taking a commemorative photo of the baby's illustrations and upload it to your SNS, or send message cards celebrating your baby's growth!
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊Turn your pregnancy records into a book!
You can export all your pregnancy records saved in 280days to an easy-to-read layout exclusively for books.
Preserve your priceless memories of your pregnancy saved in the app, such as ultrasound photos, maternity photos, diary entries and the cards you exchanged, in a single book.
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
◆Removing advertisements
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
In order to allow our users to enjoy their pregnancy better, 280days offers a function to hide the advertisements displayed at the bottom of the app through in-app purchases. If you like this app, please do take advantage of this function.
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
A FREE pregnancy record and diary app that you can share with your spouse.
Connecting not only Mommy and Daddy, but also the baby in Mommy's tummy♥
The only app you need to manage your physical condition and medical checkups★
Packed with services and functions that will make your pregnancy more enjoyable, such as baby illustrations that grow based on the number of weeks of your pregnancy, week-by-week pregnancy advice and message cards!
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊Visualize the baby in your tummy with cute illustrations!
Check on the baby in your tummy every day!
The cute illustrations of the baby will make different adorable gestures each time you open the app, and will grow based on the number of weeks of your pregnancy. The baby will also talk whenever you tap on the baby. The baby's lines changes every day, and will send you messages of encouragement and information on the baby's condition.
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊Fully manage your physical condition and memories!
Manage your physical condition and medical checkups daily with just this app!
By recording your physical condition and medical checkup results, you can manage your ultrasound photos and weight records all at once. In addition, you can save your maternity photos and memories of your pregnancy as a photo diary together with your spouse.
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊First-time Mommy or Daddy? No problem!
The week-by-week advice in 280days all come with illustrations! Enjoy reading and learning how the baby is growing, how Mommy's physical condition changes and advice on how she could spend her time at each week of her pregnancy.
Mommy's physical condition records and the baby's condition can be shared with Daddy. There are also plenty of advice for Daddy at each week of the pregnancy. 280days will enable Daddy to understand pregnancy better and help improve the communication between couples.
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊All the functions necessary during pregnancy in one app!
This app is fully equipped with functions to support you throughout your pregnancy, such as pregnancy countdown and weight management graphs!
Enjoy your pregnancy even more by taking a commemorative photo of the baby's illustrations and upload it to your SNS, or send message cards celebrating your baby's growth!
＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊Turn your pregnancy records into a book!
You can export all your pregnancy records saved in 280days to an easy-to-read layout exclusively for books.
Preserve your priceless memories of your pregnancy saved in the app, such as ultrasound photos, maternity photos, diary entries and the cards you exchanged, in a single book.
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
◆Removing advertisements
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
In order to allow our users to enjoy their pregnancy better, 280days offers a function to hide the advertisements displayed at the bottom of the app through in-app purchases. If you like this app, please do take advantage of this function.
＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
What's new in 3.4.7
Thank you for always using 280days.
* Improved the stability and performance.
We will continue to make improvements in order to provide better services to our users in the future. Thank you for always using 280days.
* Improved the stability and performance.
We will continue to make improvements in order to provide better services to our users in the future. Thank you for always using 280days.