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Pregnancy Tracker: amma icon
GOOGLE PLAY

Pregnancy Tracker: amma

PERIOD TRACKER & PREGNANCY AND BABY CALENDAR · Parenting · Japan store
NOT IN TOP 100 HERE
View on Google Play ↗ Instagram card
Revenue a month, worldwide EST
$36.1K
Likely $12K to $108.4K
▼ 84.5% in 11 days
New ratings
Tracking
Daily counts start building from today
Rating
4.6 of 5
429.7K ratings in this store
Countries it ranks in
40
was 40 on Oct 15, 2026

Revenue

Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track.

EST. REVENUE / YEAR · WORLDWIDE
$433.4K
No App Store version found
LIFETIME INSTALLS (GOOGLE)
25.2M
About 184K per month on average since launch
WHERE IT EARNS · EST. / MONTH
  • India #93 Parenting$12.4K · 34%
  • Indonesia #91 Parenting$5.3K · 15%
  • Poland #95 Parenting$3.1K · 9%
  • Romania #96 Parenting$2.1K · 6%
  • Vietnam #91 Parenting$2K · 6%
  • Kazakhstan #92 Parenting$1.6K · 4%
  • Egypt #92 Parenting$950 · 3%
  • Israel #95 Parenting$916 · 3%
12 more countries
  • Pakistan #91 Parenting$914 · 3%
  • Netherlands #96 Parenting$906 · 3%
  • Ukraine #95 Parenting$817 · 2%
  • Czechia #94 Parenting$783 · 2%
  • Peru #93 Parenting$764 · 2%
  • Greece #95 Parenting$671 · 2%
  • Argentina #93 Parenting$664 · 2%
  • Portugal #96 Parenting$610 · 2%
  • Chile #92 Parenting$526 · 1%
  • Belgium #97 Parenting$461 · 1%
  • Denmark #96 Parenting$318 · 1%
  • Finland #96 Parenting$281 · 1%
HOW SURE ARE WE
Lower confidence: this app ranks below the overall top 50 everywhere, where single estimates can be off 2 to 4 times. The range is wide on purpose. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
429.7K
AVG RATING
4.64
PRICE
Free
IN APP PURCHASES
¥10 - ¥8,300 per item
CONTAINS ADS
Yes
LAST UPDATE
16d ago
RELEASED
May 25, 2015
CONTENT RATING
Rated for 3+

Last 29 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
29 / 29
COUNTRIES NOW
40 (was 9)
EST. REVENUE A MONTH, DAILY · GOOGLE PLAY EST
Show daily values
Sep 24, 2026$29.3K a month
Sep 25, 2026$25.1K a month
Sep 26, 2026$26.7K a month
Sep 27, 2026$26.7K a month
Sep 28, 2026$25.3K a month
Sep 29, 2026$25.6K a month
Sep 30, 2026$25.9K a month
Oct 1, 2026$26K a month
Oct 2, 2026$24K a month
Oct 3, 2026$23.2K a month
Oct 4, 2026$24K a month
Oct 5, 2026$24K a month
Oct 6, 2026$23.2K a month
Oct 7, 2026$24.5K a month
Oct 8, 2026$22.9K a month
Oct 9, 2026$24K a month
Oct 10, 2026$232.5K a month
Oct 11, 2026$51.2K a month
Oct 12, 2026$55.6K a month
Oct 13, 2026$55.3K a month
Oct 14, 2026$44.6K a month
Oct 15, 2026$46.8K a month
Oct 16, 2026$43.5K a month
Oct 17, 2026$43.1K a month
Oct 18, 2026$42.6K a month
Oct 19, 2026$40.7K a month
Oct 20, 2026$38.1K a month
Oct 21, 2026$36.1K a month
Oct 22, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 24, 2026: #70 Parenting · TR. Now: #79 Parenting · TR.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
¥10 - ¥8,300 per item
Google Play only shows the price range per item.
REVIEW MOMENTUM
3.4 reviews / week
  • Trendfalling
  • Recent reviews average4.1 stars
  • Recent 1 and 2 star share19%
From the latest 500 written reviews, covering 1031 days. The store only returns this many, so this is the most recent slice.
RATING BREAKDOWN
420.2K ratings
5★68%
4★27%
3★5%
2★0%
1★0%

What users want

From the latest 500 reviews on the Japan Google Play, Dec 26, 2023 to Oct 20, 2026: 19% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Too many ads21%

20 of the 1 and 2 star reviews.

★★★★★ The content was ok but the ads are too invasive and overwhelming.
★★★★★ The ads became too annoying, to the point of not being able to switch between articles before getting a forced unskippable ad.
★★★★★ predatory ads with fake close buttons and limited tools for partners which make this app completely useless.
Bugs, things not working12%

11 of the 1 and 2 star reviews.

★★★★★ i try to open amma today but failed.
★★★★★ eventually even the standard version is not working properly, and app support service is not doing anything about it, even not replying for the first time, i had to remind about my request.
★★★★★ This app is not working anymore from last few weeks .
Price and subscription6%

6 of the 1 and 2 star reviews.

★★★★★ I just wasted my Money imagine I left a free app with hopes that I'll find better information and better assistance....
★★★★★ when I tried to refund the purchase of premium version, of course google play refused it.
★★★★★ What a rip off The flo app that has all the same info/perks is $40 annually
Wrong or poor results6%

6 of the 1 and 2 star reviews.

★★★★★ This is the most useless app I could ever imagine.
★★★★★ predatory ads with fake close buttons and limited tools for partners which make this app completely useless.
★★★★★ HATE this app it's absolutely useless.
No customer support5%

5 of the 1 and 2 star reviews.

★★★★★ I've sent an email to the support team (messages with the team didn't function from the app btw), didn't get any response in 2 weeks, when I tried to send a follow-up, there was a failure sending an email as I'm not…
★★★★★ eventually even the standard version is not working properly, and app support service is not doing anything about it, even not replying for the first time, i had to remind about my request.
★★★★★ Though, I contacted support chat ( who claims to respond within a day) never responded.
Crashes and freezes4%

4 of the 1 and 2 star reviews.

★★★★★ it just crash n auto closed indefinitely.
★★★★★ tried deleting and re-downloading but it still gets stuck on the Welcome page.
★★★★★ Keeps crashing, tells me not to purchase the paid one
Login and account problems4%

4 of the 1 and 2 star reviews.

★★★★★ my partner wanted me to help keep track of her contractions but the helper app is missing from my account.
★★★★★ The app is good but it only works for a day on my phone n goes blank each tym i try to log in...i have to uninstall and start afresh always..its so frustrating
★★★★★ It's the only app that didn't have me pay for everything in order to use it and then it goes and decides to delete my whole account and make me do it all over again all the time OR it's just a blank screen and won't…
Worse after an update4%

4 of the 1 and 2 star reviews.

★★★★★ Not working, ever since the update it doesn't work properly
★★★★★ Is there some reason that ever since the last update I've had nothing but a problem with this app?!
★★★★★ Update; can't you even reply in English?
WHAT THEY ASK FOR
  • And I highly recommend it for expecting mothers (and fathers, because you can add a partner). 5★, Feb 13, 2025
  • it good so far but i try to keep up i want a thirds baby i check myself and i seeing period and feeling sightly moving in my belly but idk what happening there and i getting sytomous but it showing negtive i hope i get… 5★, Dec 27, 2024
  • I liked this app when I was pregnant, unfortunately after my stillbirth I couldn't keep it, because it doesn't let you add a pregnancy loss, I said my baby was born but in the app there's only one option Alive. 4★, Nov 9, 2024
  • I want all good power 100% work 5★, Aug 10, 2024
  • So far it's amazing thank all the knowledge but I don't think u should have to pay for the app like that. 4★, Jul 18, 2024
  • Definitely needs to have a way to search for articles. 1★, Feb 9, 2024
  • Never can find the one i want at time i want it. 1★, Feb 9, 2024
WORDS THAT KEEP COMING UP IN BAD REVIEWS
white screen4won't let3blank screen3
WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Useful, it helps20%

76 of the 4 and 5 star reviews.

★★★★★ This app was really helpful during my first pregnancy and also using it now for my second pregnancy
★★★★★ It's also equally helpful now that my baby is born and I have access to many different articles.
★★★★★ very helpful to me ,I really enjoyed using the app
Accurate, great results3%

13 of the 4 and 5 star reviews.

★★★★★ very detailed and accurate
★★★★★ I really love this app because it's very accurate and informative, it helped me a lot
★★★★★ Best app I've ever used, very helpful and mostly accurate about a lot of things to expect during your pregnancy journey.I used this app to track my pregnancy before going for an ultrasound, and guess what, the…
Easy to use3%

11 of the 4 and 5 star reviews.

★★★★★ This app made navigating my pregnancy so easy, being able to track my baby's size according to gestational age.
★★★★★ the best pregnancy tracker it is very simple and understanding
★★★★★ I recommend it for everyone, very easy and helpful
Fun, addictive1%

2 of the 4 and 5 star reviews.

★★★★★ very helpful to me ,I really enjoyed using the app
★★★★★ it fun, interactive and educational.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, Japan Google Play.

★★★★★Oct 20, 2026

very good app. The onboarding as the father seems a bit buggy or by design very spammy. Took me several minutes just to get past all the prompts. Otherwise very good

★★★★★Oct 6, 2026

excellent experience

★★★★★Oct 1, 2026

There is a major bug in the app. In the child’s development section, the weekly development tabs redirect to pregnancy‑related articles instead of content about the child’s development.

★★★★★Sep 18, 2026

i try to open amma today but failed. it just crash n auto closed indefinitely. why is that? please check

★★★★★Sep 16, 2026

I just wasted my Money imagine I left a free app with hopes that I'll find better information and better assistance.... don't even waist your time with this one..

★★★★★Sep 3, 2026

This app was really helpful during my first pregnancy and also using it now for my second pregnancy

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Same category, earning about as much.

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Store screenshots

ScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshot

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title or short description.

baby17week12due date11pregnancy10baby growth10date calculator10gestational age10tracker9mom9date8pregnancy tracker8week week8kick counter8growth7due7track7contraction timer6counter gestational6calculator6gestational6age6amma5pregnant5kick5

What's new in 3.90.0.3

To make the app to work even better, continuous improvement is needed. We have made some minor changes that will not affect you. Thanks for being with us, "Pregnancy tracker" team

Store description

PREGNANCY TRACKER FOR ALL MOM AND BABY’S NEEDS Pregnancy is a very important period in every mom's life. amma is your all-in-one pregnancy app and baby growth guide for expecting mothers. This week-by-week pregnancy tracker makes it even better with personalized updates, a due date calculator, and tips for what to expect during all 280 days of a pregnant mom’s journey. Being pregnant is a beautiful time in many mom's lives! Our due date calculator helps expecting mothers track pregnancy and offer guidance on baby growth, fetal development, and how to care for the bump from the first week to the final week. Important tools like contraction timer, kick counter, gestational age will help to monitor health of a baby and a mom. BABY GROWTH & WEEKLY CALENDAR Monitor baby’s development week by week with a detailed pregnancy tracker. Get insights into growth stages, gestational age, and what’s happening inside your body, along with helpful tips to support the health of a pregnant mom. TOOLS, COUNTDOWN & DUE DATE CALCULATOR Create your personal countdown by entering your last period date. Use essential tools like a due date calculator, contraction timer, kick counter, gestational age and baby tracker to stay informed every day. BODY CHANGES & NUTRITION GUIDE Understand how your body is changing with a clear week-by-week view. Track the bump, learn about common symptoms, and explore nutrition tips and healthy meal ideas designed for pregnant moms. BABY GROWTH & MOM’S HEALTH Discover how your baby grows and how your body adapts during each stage. Track key milestones, track pregnancy, monitor health and access helpful insights with amma. AMMA USEFUL FEATURES: - Track pregnancy and baby growth week by week; - Check gestational age with due date calculator; - Monitor symptoms with pregnancy tracker; - Follow weekly baby development updates; - Calculate due date and use contraction timer; - Count kicks with baby kick counter - Track weight and BMI with guidelines; - And more! Baby growth tracker will show you how your baby changes week-by-week. The kick counter, gestational age tracker, and fetal doppler monitor confirm your baby’s well-being and steady development. amma embraces the baby and mom connection and gives you an overview of every important detail. This app is not for medical use and does not replace the advice of a trained medical doctor. If you have any concerns about your health, consult with your doctor or midwife. Stay informed with amma Pregnancy Tracker designed for every pregnant mom. Track your journey with a baby tracker, use contraction timer, kick counter, gestational age and get accurate insights using the due date calculator - all in one easy experience.

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Prices, ranks and reviews are per country. Revenue above is already worldwide.

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