Simple Call Blocker is a free iOS utility that allows users to block specific phone numbers and number ranges to prevent unwanted calls.
The App DNA
What makes this app unique?
Users hire this app to stop neighbor-spam without paying for subscriptions or granting contact access, serving those who prioritize data privacy over automated spam databases.
For iPhone users seeking a simple, privacy-focused tool to block spam calls without recurring subscription costs or data collection.
What does it look like?
Key features
Blocks entire sequences of phone numbers to prevent neighbor spam.
Exempts specific numbers or ranges from the block list to ensure critical calls connect.
Automatically allows all numbers stored in the device contacts list.
How much does it cost?
The app operates on a free, non-monetized model, positioning itself as a privacy-focused alternative to subscription-based call blockers.
Velocity
Dormant developmentperformanceShow more...
Simple Call Blocker has been inactive for over 46 months, with no updates since the latest version in 2022. The development trend is non-existent, as the app has not received any feature updates, bug fixes, or maintenance patches in over three years. Given the lack of activity, the app is classified as a zombie project.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Simple Call Blocker
How's the Utilities market?
Simple Call Blocker maintains a 4.2-star rating across 3,515 reviews, serving as a privacy-first alternative in the Utilities category. The lack of updates since 2022 signals a maintenance-mode posture that risks losing ground to active, subscription-based competitors.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Simple Call Blocker
Where is it heading?
The utility market is shifting toward automated, AI-driven spam detection, leaving Simple Call Blocker's manual approach increasingly isolated. Without a roadmap for feature expansion or technical maintenance, the app will likely see a slow decline in relevance as users prioritize automated protection over manual privacy controls.
- The app has been in maintenance mode for over 1,400 days, which increases the risk of functional failure following future iOS updates.
The SWOT
- Range-based blocking mechanism provides specific defense against neighbor-spam without recurring subscription fees
- Privacy-first design avoids data collection or web-service logins
- Integration of community-sourced spam reporting could bridge the gap to subscription-based competitors
Next best moves
Audit Call Directory extension compatibility because the app has not been updated since 2022 → prevent functional failure
The counter-intuitive read
Users report: The app's lack of a spam…
Read the full takeSince the last report: The analysis shifted from identifying competitive feature gaps to highlighting critical technical risks associated with the app's multi-year maintenance mode.
Bottom line
Simple Call Blocker serves a specific privacy-conscious segment through manual range-blocking, but the lack of updates since 2022 creates a high risk of technical obsolescence, so the PM should prioritize a stability audit to ensure the Call Directory extension remains functional.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Does Simple Call Blocker automatically block spam calls?
Is Simple Call Blocker free to use?
Does the app collect my personal information?
Sources
- [1] App Store, source
Report last updated