Caller ID Block: Spam Blocker is a utility app for iOS that filters spam SMS, MMS, and calls using local device processing.
Product velocity
Dormant
Daily rank 🇺🇸
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Utilities
Sentiment
1.0
2 reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
Users report: Users hire this app to reclaim their attention from telemarketers and robocalls without exposing their communication data to cloud-based filters.
For Mobile users seeking to reduce interruptions from telemarketers, robocalls, and promotional SMS messages.
What does it look like?
Key features
Processes SMS, MMS, and call filtering locally on the device without requiring an internet connection.
Allows manual management of blocked and allowed numbers to override automated filtering.
How much does it cost?
Subscription model anchored by a 3-day trial, gating unlimited filtering and custom rules behind a weekly recurring payment.
Velocity
Dormant developmentopaqueShow more...
Caller ID Block: Spam Blocker has been inactive for approximately 332 days, placing it firmly in the zombie category. The only available version history consists of a single minor update focused on generic performance improvements. There is no evidence of ongoing development, feature expansion, or live operations support. The lack of updates for nearly a year suggests the project is no longer being actively maintained.
Who built it?
User Sentiment
What do users think recently?
Review voice lately leans upset.
How are ratings & reviews evolving?
What users say, by theme
- Aggressive weekly subscription pricing creates significant friction for users expecting a lower cost of entry
1 of 1 recent reviews analyzed · limited sample
Read the full review analysisCompetition
Competitive landscape for Caller ID Block: Spam Blocker.
How's the Utilities market?
The app maintains a 1.0★ rating across 2 total ratings, signaling a failure to meet user expectations for a paid utility. The lack of updates for 333 days confirms a zombie development status that prevents any meaningful market share capture.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Caller ID Block: Spam Blocker.
Where is it heading?
The utility market is consolidating around free, system-integrated spam protection, making a paid, unmaintained app obsolete. The lack of updates for nearly a year signals that this app will lose all remaining relevance as OS-level spam filtering improves, so the PM should sunset the project to avoid further brand damage.
- The 11-month development silence indicates the product is abandoned, which will lead to total user churn as iOS system updates break compatibility.
The SWOT
- Local-processing architecture ensures user data privacy without requiring an internet connection
- Shift to a freemium model with a one-time purchase option to lower the barrier for casual users
Next best moves
Pivot to a freemium model because the current weekly subscription is the top complaint → reduce churn
The counter-intuitive read
The app's silence is its only asset…
Read the full takeSince the last report: The analysis shifted from a focus on pricing pivots to a recommendation for project sunsetting due to prolonged inactivity and market consolidation.
Bottom line
The app fails to justify its weekly subscription cost, because the 1.0★ rating reflects deep user dissatisfaction with the value proposition, so the PM should pivot to a freemium model to stabilize the user base.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
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