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whowho - Caller ID & Block icon
GOOGLE PLAY

whowho - Caller ID & Block

VP (Inc) · Communication · Brazil store
NOT IN TOP 100 HERE
View on Google Play ↗ Instagram card
Revenue a month, worldwide EST
$1.2M
Likely $400.8K to $3.6M
▼ 1.0% in 27 days
New ratings
Tracking
Daily counts start building from today
Countries it ranks in
1
was 1 on Oct 15, 2026

Revenue

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

EST. REVENUE / YEAR · WORLDWIDE
$14.4M
No App Store version found
LIFETIME INSTALLS (GOOGLE)
26.5M
Worldwide, reported by Google
WHERE IT EARNS · EST. / MONTH
  • South Korea #13 Communication$1.2M · 100%
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
n/a
AVG RATING
n/a
PRICE
Free
IN APP PURCHASES
R$3.99 - R$16.99 per item
CONTAINS ADS
Yes
LAST UPDATE
3d ago
RELEASED
n/a
CONTENT RATING
All ages

Last 29 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
29 / 29
COUNTRIES NOW
1 (was 1)
EST. REVENUE A MONTH, DAILY · GOOGLE PLAY EST
Show daily values
Sep 24, 2026$1.2M a month
Sep 25, 2026$1.2M a month
Sep 26, 2026$1.2M a month
Sep 27, 2026$1.2M a month
Sep 28, 2026$1.2M a month
Sep 29, 2026$1.2M a month
Sep 30, 2026$1.1M a month
Oct 1, 2026$1.1M a month
Oct 2, 2026$1M a month
Oct 3, 2026$1M a month
Oct 4, 2026$1M a month
Oct 5, 2026$838.1K a month
Oct 6, 2026$907.7K a month
Oct 7, 2026$1M a month
Oct 8, 2026$1M a month
Oct 9, 2026$1.2M a month
Oct 10, 2026$1.2M a month
Oct 11, 2026$1.2M a month
Oct 12, 2026$1.1M a month
Oct 13, 2026$1.2M a month
Oct 14, 2026$1.1M a month
Oct 15, 2026$1.2M a month
Oct 16, 2026$1.1M a month
Oct 17, 2026$1.1M a month
Oct 18, 2026$1.2M a month
Oct 19, 2026$1.2M a month
Oct 20, 2026$1.2M a month
Oct 21, 2026$1.2M a month
Oct 22, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 24, 2026: #13 Communication · KR. Now: #13 Communication · KR.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
R$3.99 - R$16.99 per item
Google Play only shows the price range per item.
REVIEW MOMENTUM
0.8 reviews / week
  • Trendfalling
  • Recent reviews average3.2 stars
  • Recent 1 and 2 star share40%
From the latest 500 written reviews, covering 4179 days. The store only returns this many, so this is the most recent slice.

What users want

From the latest 500 reviews on the Brazil Google Play, May 14, 2015 to Sep 22, 2026: 40% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Login and account problems15%

30 of the 1 and 2 star reviews.

★★★★★ No sent the verification code
★★★★★ I've waiting for so long to get sms verification but it never come.
★★★★★ Not getting verification code tried to many time but case was unsuccessful.
Bugs, things not working6%

12 of the 1 and 2 star reviews.

★★★★★ Spam block doesn't work well.
★★★★★ It's slow, buggy, and full of ads My battery improved after uninstalling this app
★★★★★ Mobile number verification error
Too many ads2%

5 of the 1 and 2 star reviews.

★★★★★ Intrusive ads throughout the app.
★★★★★ It inserts ads in message.
★★★★★ It always ask 'appear on top' Then it always shows stupid ads 'on top' I'll just get rid of stupid app a.s.a.p.
Wrong or poor results2%

5 of the 1 and 2 star reviews.

★★★★★ This app keeps on sending me wrong identification number.
Crashes and freezes2%

4 of the 1 and 2 star reviews.

★★★★★ very slow and crash every time
★★★★★ Won't load all I get is a startup screen, will try reinstalling
No customer support2%

4 of the 1 and 2 star reviews.

★★★★★ it sent an install message to my contacts, and installed itself on my contact's phone.
★★★★★ Would be a good app if it actually showed the callers information other than the ones calling from your personal contact list.
★★★★★ Doesnt block text after on block list, so software support needs to improve the app...
Slow, laggy, battery1%

3 of the 1 and 2 star reviews.

★★★★★ It's slow, buggy, and full of ads My battery improved after uninstalling this app
★★★★★ very slow and crash every time
Missing features1%

3 of the 1 and 2 star reviews.

★★★★★ I am uninstalling this right away due to obvious security issue and lack of privacy respect.
★★★★★ Can't change your number.
★★★★★ Can't change the color of the default keypad from the ugly bright white.
WHAT THEY ASK FOR
  • Please make it possible.. 5★, Jul 2, 2016
  • Well, this may not be the software problem, but it would be great if the software itself can to the filtering. 5★, May 7, 2016
  • Also, editing file name in the phone would be great feature. 5★, May 7, 2016
  • I downloaded Trucaller but didn't need all its features (however Trucaller worked) so downloaded this to compare and find out name of a caller and see its features. 2★, Apr 6, 2016
WORDS THAT KEEP COMING UP IN BAD REVIEWS
verification code25true caller4mobile number3code nor3
WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Useful, it helps6%

15 of the 4 and 5 star reviews.

★★★★★ Fantastic app that really proves useful in Korea.
★★★★★ But i never thought it would be this useful
★★★★★ Very good app~ helps with spam all the time
Easy to use1%

3 of the 4 and 5 star reviews.

★★★★★ Identifies spam numbers, simple and easy to use.
Looks great1%

3 of the 4 and 5 star reviews.

★★★★★ 외국에선 후후가 Truecaller 에 비해 데이터베이스면에서 정말 많이 쳐지는것 같네요 하지만 예전에 후후를 써왔던 저로썬 UI만큼은 국산앱인 후후가 훨씬 맘에듭니다.
★★★★★ Bit lack of amiablity in terms of design thou.
Fast1%

2 of the 4 and 5 star reviews.

★★★★★ It's fast on picking up the caller's information and it logs just like your regular phone app!

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, Brazil Google Play.

★★★★★Sep 22, 2026

matagal ko na ginagamit pero sa tuwing may tumawag sa akin ay no.lang lumalabas at hindi alam kung saan lugar ang tawag at spam lang nakalagay

★★★★★Aug 22, 2026

I installed to get some rest from the spams but it seems this app itself is a scam with tons of advertising every time a call or sms arrives.

★★★★★Sep 1, 2025

좋은 앱 감사합니다! 다만 노티스토리를 위젯으로도 만들어서 바로 확인 가능할 수 있게 해주시면 더 좋을거 같아요 🙏🥺

★★★★★Mar 12, 2025

25년 3월) 전화앱 대체해서 쓰고 싶은데, 초기 실행이 너무 오래 걸린다..... 좋아진줄 알았는데 광고가 진짜 너무 많다. 삭제 (s23 ultra)

★★★★★Jan 18, 2025

백그라운드에서 계속 작동하고, 끌 수 없으며, 광고가 너무 많습니다. 이 앱이 직장에서 필수라서 삭제하지 못하고 있습니다.

★★★★★Jan 13, 2025

I uninstalled a few seconds after installed....too many permissions asked, too many data they want to collect from us. I just wanted to be informed of the damn unknown number...why do they need to know my email address on this case?

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Same category, earning about as much.

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Store screenshots

ScreenshotScreenshotScreenshotScreenshotScreenshotScreenshot

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.

whowho9numbers7calls4spam4block4unknown numbers3block useless3starting kitkat3kitkat whowho3whowho able3able block3block text3text message3message sms3sms mms3useless3service3know2unknown2good2convenient2management2smartphone2recording2

What's new in 4.27.1

주요 업데이트 사항 ㆍ 앱 사용성과 안정성을 강화하고 버그를 개선했어요.

Store description

▶대한민국 3천만 이용자가 경험한 국민 전화 앱 1. Get informed on numbers as the calls come in Choose to reject useless spam, and never miss the calls that matter. WhoWho tells you all you need to know about unknown numbers in real time - both the good and the spam. 2. Convenient Number Management Use your smartphone more efficiently by recording important information, such as whether numbers are safe or spam. 3. Make Community Reports as One Share information on unknown numbers with other users, creating a service that’s helpful to all users. 4. Use WhoWho as your default caller on your smartphone The app allows you to use frequently dialed numbers faster and with more convenience, and offers several other functions, including friendliness stats on each contact, memos, schedule management, call recording, and others. In addition, make use of a variety of convenient widgets, including call logs, frequent contacts, and keypad. 5. Block useless numbers for good! You can identify bad numbers (spam, voice phishing, etc.) before accepting calls, and you can completely block useless calls using a variety of blocking options. ! However Starting From Android 4.4(Kitkat), WhoWho will not be able to block text message(SMS, MMS) in accordance with Google’s service policy. 6. WhoWho on Wearables Use WhoWho on a smart watch by making a simple adjustment to settings. * WhoWho is a totally free service * Wireless internet(3G or WiFi) is required for WhoWho to work normally * Starting From Android 4.4(Kitkat), WhoWho will not be able to block text message(SMS, MMS). * If you have any questions, please let us know by e-mail : whowho@ktcs.co.kr

See this store page in another country

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

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