Robokiller is a spam call and text blocking app for iOS that uses audio fingerprinting and automated bots to intercept unwanted communications.
Product velocity
Active
Daily rank 🇺🇸
#8
▼1Utilities · grossing
Sentiment
4.5
413k reviews
Nemesis
Hiya: Spam Blocker & Caller ID
The App DNA
What makes this app unique?
Users hire Robokiller to reclaim personal time and gain a sense of control over intrusive telemarketing, using the revenge-bot feature to turn a negative experience into a source of entertainment.
For Mobile users seeking to eliminate spam calls and text messages while protecting their personal data from public exposure.
Key features
AI-powered audio fingerprinting analyzes unrecognized calls to prevent phone ringing
Automated recorded responses that engage and waste the time of identified spammers
Scans public search sites to identify and request removal of user private information
How much does it cost?
Subscription-only model requires payment for all core functionality, anchored by the promise of preventing financial loss.
Velocity
Active developmentperformanceopaqueShow more...
The app ships approximately 0.7 releases per week, placing it in the active tier. Despite the consistent release frequency, the publisher provides identical, generic release notes for every update, suggesting that feature development or A/B testing is likely managed via server-side flags rather than App Store-distributed code. There is no evidence of live-ops events or new feature announcements in the observed data. The development trend is stable, focusing exclusively on maintenance and stability improvements.
Who built it?
Mosaic S.r.l.
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What do users think recently?
Users report: Review voice lately leans frustrated. Users appreciate automated answer bots provide significant satisfaction by wasting time for telemarketers and scammers and effective filtering of spam calls and text messages provides a sense of daily peace, but report inconsistent call screening performance post-update leaves many users exposed to persistent spam calls.
How are ratings & reviews evolving?
What users say, by theme
- Automated answer bots provide significant satisfaction by wasting time for telemarketers and scammers
- Effective filtering of spam calls and text messages provides a sense of daily peace
- Users report: Inconsistent call screening performance post-update leaves many users exposed to persistent spam calls
98 of 98 recent reviews analyzed · high confidence · Frustrated overall
Read the full review analysisUnlock 1 more frustration theme and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Robokiller: Spam Call Blocker
How's the Utilities market?
Robokiller holds the #11 Grossing position in the US Utilities category. The gap between its high-utility branding and recent technical regressions suggests that current chart performance is sustained by legacy brand trust rather than current filtering efficacy.
Read the market outlookThe rivals identified
By Hiya
Hiya operates in the exact same spam-blocking niche with a massive, established caller-ID database that directly competes with Robokiller's core value proposition.
- Leverages a massive carrier-grade database that powers native integration for major global mobile network operators.
- Focuses on enterprise-grade caller identity verification rather than just consumer-facing spam call blocking features.
- Provides a more neutral, utility-focused interface compared to Robokiller's aggressive, gamified 'spam-fighting' branding.
Unlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Robokiller: Spam Call Blocker
Where is it heading?
The spam-blocking market is shifting toward carrier-integrated solutions that offer higher identification accuracy than device-level fingerprinting. Robokiller's reliance on proprietary detection leaves it exposed to these infrastructure-backed rivals, so the PM must focus on service reliability to maintain its current grossing rank.
- Inconsistent filtering in the latest release leads to persistent spam, which erodes user trust and accelerates churn.
- Automated support loops prevent resolution of billing issues, causing a surge in refund requests and negative sentiment.
The SWOT
- Answer Bots create viral social sharing loops
- Audio fingerprinting provides proactive defense against automated spam
- B2B partnerships for data protection
- Expansion of regional area-code blocking controls
Next best moves
Audit filtering logic in the latest release because screening performance is the top complaint → restore detection reliability
+ 1 more prioritized moveThe counter-intuitive read
The app's aggressive 'revenge' branding is a liability…
Read the full takeFeature gaps
Carrier-grade caller identification (available in Hiya but absent here)
Since the last report: The app is experiencing a decline in core filtering reliability post-update, resulting in increased user frustration regarding billing and persistent spam.
Bottom line
Robokiller wins through viral Answer Bot branding, but its core filtering reliability is failing, so the PM must prioritize detection accuracy and human support to prevent long-term subscriber churn.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeReport last updated