1.2M Android Apps Tracked Updated 4 min ago Revenue Forecasts
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75
BU Score
Strong

whowho - Caller ID & Block

4.3 ✍️ Editor
✍️ bumetric analysis

whowho - Caller ID & Block is an Android app from VP (Inc) in the Lifestyle category, currently rated 4.3★ across 260,860 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Our BU Score puts it at 75: Strong (healthy traction). For a Lifestyle app, that means healthy traction.

Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 3 of 3 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
High install base (260,860 ratings)METRIC
+$12,000
Good rating (4.3★)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 vVaries with device📂 Lifestyle💰 Free

📝 About this app

<b>▶대한민국 3천만 이용자가 경험한 국민 전화 앱
<b>1. Get informed on numbers as the calls come in</b>
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.

<b>2. Convenient Number Management</b>
Use your smartphone more efficiently by recording important information,
such as whether numbers are safe or spam.

<b>3. Make Community Reports as One</b>
Share information on unknown numbers with other users,
creating a service that’s helpful to all users.

<b>4. Use WhoWho as your default caller on your smartphone</b>
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.

<b>5. Block useless numbers for good!</b>
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.

<b>6. WhoWho on Wearables</b>
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</b>

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
whowho - Caller ID & Block
Developer
VP (Inc)
Bundle ID
com.ktcs.whowho
App Store URL
Open in App Store
Category
Lifestyle
Content rating
Not found
Languages
Not found

Company

Website
Not found
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
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Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$3.0K/mo
Top-grossing rank
Not found
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.

More by VP (Inc)

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Full revenue analysis
Read the article-style breakdown for whowho - Caller ID & Block: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →