Textkiller is a utility app for iOS that filters spam text messages using predictive algorithms and user-defined rules.
The App DNA
What makes this app unique?
Users hire Textkiller to reclaim inbox sanity from automated distractions, removing the social and mental cost of filtering spam manually.
For Smartphone users seeking to eliminate unsolicited text messages and telemarketing distractions from their iMessage inbox.
What does it look like?
Key features
Algorithm identifies spam in under 0.01 seconds using a global block list updated every minute.
User-defined rules to block specific keywords, email addresses, or phone number ranges.
Filters all messages from senders outside the contact list.
User-submitted reports to refine the central blocking algorithm.
How much does it cost?
Subscription-only model requires payment for core utility, removing the free-tier ad-supported option common in the category.
Velocity
Dormant developmentShow more...
5 versions in history. Development pace: zombie.
Who built it?
Mosaic S.r.l.
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What do users think recently?
The recent review mood reads frustrated. Users appreciate effective spam text filtering provides immediate relief from high volumes of unwanted political solicitation messages and reliable performance for users who successfully complete the initial setup and configuration process.
How are ratings & reviews evolving?
What users say, by theme
- Effective spam text filtering provides immediate relief from high volumes of unwanted political solicitation messages
- Reliable performance for users who successfully complete the initial setup and configuration process
- Verification code failures prevent new and returning users from accessing the core application interface
49 of 49 recent reviews analyzed · high confidence · Frustrated overall
Read the full review analysisUnlock 2 more frustration themes and 2 user requests, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Textkiller - Spam Text Blocker
How's the Utilities market?
Textkiller occupies a niche in the Utilities category, currently ranking in the top 100 Grossing charts in specific regions. The gap between its free-to-download status and subscription-only utility creates a high conversion hurdle compared to ad-supported rivals.
Read the market outlookThe rivals identified
By True Software Scandinavia AB
Truecaller maintains the largest global database of spam identifiers, creating a massive network effect that directly challenges Textkiller's niche.
- Leverages a massive crowdsourced database of caller identities that far exceeds static blocklists
- Integrates real-time caller ID identification alongside spam blocking to provide immediate context for incoming calls
- Operates a global community-driven reporting system that updates spam signatures faster than manual list curation
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 Textkiller - Spam Text Blocker
Where is it heading?
The spam-blocking market is consolidating around network-integrated and crowdsourced solutions, leaving standalone apps like Textkiller exposed. Without a resolution to the current authentication and filtering bugs, the app will continue to lose ground to competitors that offer more reliable, zero-friction protection.
- Verification failures in the latest release prevent new user onboarding, which directly accelerates churn and suppresses new subscription revenue.
- Inconsistent filtering performance leads to user frustration, as the core utility fails to block spam after initial setup.
The SWOT
- Patented predictive algorithm enables sub-0.01s spam detection
- Keyword-based filtering provides granular control beyond simple number blocking
- Integrate wearable notifications to extend spam-free utility
- Partner with carriers for network-level list distribution
Next best moves
Rebuild authentication flow because verification failures are the top complaint → reduce churn
+ 1 more prioritized moveThe counter-intuitive read
The subscription-only model is not a weakness but…
Read the full takeFeature gaps
Crowdsourced real-time spam database (available in Truecaller but absent here) +2
Since the last report: The app has introduced new filtering features but is currently suffering from critical authentication failures and inconsistent spam blocking that drive negative sentiment.
Bottom line
Textkiller provides effective spam filtering, but critical authentication failures in the latest release undermine its core value, so the PM must prioritize technical stability over new features to prevent further churn.
Unlock 3 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeReport last updated