Whoscall is a communication-safety app for mobile users that identifies and blocks spam calls and SMS messages on iOS and Android.
Product velocity
Maintenance
Daily rank 🇺🇸
—
Communication
Sentiment
3.8
809k reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
Users report: Users hire Whoscall to filter out voice phishing and telemarketing, relying on the community-powered database to verify unknown numbers before answering.
For Mobile users in Southeast Asia and beyond seeking protection from voice phishing, spam calls, and SMS-based scams.
What does it look like?
Key features
Real-time identification of incoming calls and automated blocking of known spam numbers. Revenue link: Core utility driving free-tier ad inventory.
Detection and filtering of phishing links and suspicious messages. Revenue link: Differentiator for premium subscription conversion.
Verification of phone numbers, URLs, and screenshots. Revenue link: High-value utility for premium tier.
Gamified task system where users report scams to earn points. Revenue link: Retention loop for database growth.
How much does it cost?
Freemium model utilizes ad-supported free access to build a massive user-contributed database, while gating advanced security features behind a premium subscription.
Velocity
Maintenance developmentperformanceopaqueShow more...
Whoscall currently maintains a low-frequency release cadence, averaging approximately one update every 4-5 weeks across platforms. Development activity is currently limited to minor stability and performance improvements, as indicated by the generic release notes provided. There is no evidence of new feature development or live-service events in the recent history. The publisher appears to be in a maintenance phase, focusing exclusively on technical upkeep.
Who built it?
Gogolook
3 apps tracked · Communication
Call Defender - Caller ID
Whoscall: Caller ID & BlockUser Sentiment
What do users think recently?
Users report: Fresh user feedback skews frustrated. Users appreciate effective identification of unknown callers provides a sense of security for users managing spam, but report aggressive full-screen ads with deceptive close buttons frustrate users and degrade the experience.
How are ratings & reviews evolving?
Weekly average review rating
What users say, by theme
- Effective identification of unknown callers provides a sense of security for users managing spam
- Users report: Aggressive full-screen ads with deceptive close buttons frustrate users and degrade the experience
64 of 99 recent reviews analyzed · high confidence · Frustrated overall
Read the full review analysisUnlock 2 more frustration themes and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Whoscall: Caller ID & Block
How's the Communication market?
Users report: Whoscall maintains a dominant presence in the Communication category across Southeast Asia, holding top-20 grossing positions in markets like Taiwan, Hong Kong, and Thailand. The freemium model leverages ad-supported access to scale the spam-reporting network, while gating advanced SMS-phishing protection behind a premium subscription.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Whoscall: Caller ID & Block
Where is it heading?
Casual communication-safety traffic is consolidating around fresh entrants; maintenance-mode updates leave Whoscall exposed to rivals with higher release cadences. A single live-ops rival with a 2-week update cycle will erode the current lead before the next major drop.
- Aggressive ad-frequency in the latest release erodes the daily active habit, which compounds the rating drag already visible on Android.
- Recent updates focused on stability, no feature expansion, leaving the app exposed to more agile, feature-rich competitors.
The SWOT
- 21-language voice library functions as a B2B distribution barrier into international preschool partnerships
- Network effects across spam-reporting database driven by 800K+ ratings
- Education partnerships untapped as B2B distribution channel for scam awareness
- Expansion of the 'Check' tool into browser-based verification
Next best moves
Audit ad-network SDKs because users report deceptive close buttons forcing redirects → restore trust and reduce churn
+ 1 more prioritized moveThe counter-intuitive read
The app's #1 rank in regional markets is its primary risk…
Read the full takeSince the last report: The analysis reflects a shift in strategic outlook from declining to mixed, incorporating new B2B assets and regulatory threats while maintaining a focus on ad-related churn.
Bottom line
Whoscall wins through a massive, community-powered spam database, but the aggressive ad-frequency degrades the core utility, so the PM must prioritize ad-quality audits to prevent long-term churn to competitors.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeSources
Report last updated