1Blocker is a native Safari content-blocking utility for iOS, iPadOS, and macOS that filters ads and trackers.
Product velocity
Maintenance
Daily rank 🇺🇸
—
Utilities
Sentiment
4.0
35k reviews
Nemesis
Firefox Focus: Privacy browser
The App DNA
What makes this app unique?
It removes the cognitive and performance friction of intrusive web ads, serving users who prioritize browser speed and privacy over ad-supported content.
For Safari users on Apple devices who prioritize privacy, faster page loading, and control over their browsing environment.
Key features
Native integration with Safari to block ads, trackers, and annoying elements via content-blocking rules
Allows users to define custom blocking rules using regular expressions or CSS selectors
Synchronizes custom rules and whitelists across iPhone, iPad, and Mac devices
How much does it cost?
Freemium model gates advanced customization and specific filter categories behind a one-time or subscription purchase to sustain independent development.
Velocity
Maintenance developmentperformanceUX improvementsShow more...
Development has slowed significantly, with the latest release occurring 128 days ago. The release history shows a shift toward minor maintenance, focusing primarily on ad-blocking refinements and general performance optimizations rather than new feature development. The publisher maintains a low-frequency update schedule, with no major feature additions identified in the recent history. The app is currently in a maintenance state, as the cadence has fallen below the threshold for active development.
Who built it?
User Sentiment
What do users think recently?
Recent user voice shows a frustrated sentiment. Users appreciate cross-platform synchronization of custom ad-blocking rules between mobile and desktop devices provides a consistent experience and granular control over specific filter categories allows users to manually select which domains are blocked, but report persistent failure to block youtube and in-game advertisements across multiple platforms frustrates users seeking a clean experience.
How are ratings & reviews evolving?
What users say, by theme
- Cross-platform synchronization of custom ad-blocking rules between mobile and desktop devices provides a consistent experience
- Granular control over specific filter categories allows users to manually select which domains are blocked
- Responsive indie developer engagement with user feedback creates a sense of community and genuine care
- Persistent failure to block YouTube and in-game advertisements across multiple platforms frustrates users seeking a clean experience
99 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 1Blocker: Ad Blocker
How's the Utilities market?
1Blocker holds a 4.49 rating on iOS, but the 128-day update gap leaves it vulnerable to rivals that update more frequently to counter YouTube's ad-injection. The current maintenance cadence risks ceding the privacy-utility space to more aggressive competitors.
Read the market outlookThe rivals identified
By Mozilla
With 79,820 reviews, it operates at 6.4x the scale of 1Blocker's iOS presence while maintaining a superior 4.65 rating.
- Higher user satisfaction (4.65 rating) compared to 1Blocker's 4.49 on iOS.
- Integrated browser experience vs. 1Blocker's dependency on Safari as a content blocker.
- Significant market footprint with nearly 80k ratings signaling high trust in the Mozilla brand.
Total Adblock - Ad BlockerContender
Adblock Plus for Safari & AppsContender
Lockdown Privacy: AdBlock VPNContenderUnlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for 1Blocker: Ad Blocker
Where is it heading?
The ad-blocking market is consolidating around tools that can rapidly counter server-side ad injection, leaving 1Blocker's static filter approach increasingly exposed. Without a shift to a more responsive update cadence, the app risks losing its position as a primary Safari utility to more agile competitors.
- Persistent YouTube ad-blocking failures lead to increased churn, which compounds the negative sentiment already visible in recent reviews.
- Subscription cancellation friction drives accusations of financial exploitation, damaging the independent developer brand reputation.
The SWOT
- Native Safari integration avoids script-injection performance overhead
- iCloud-synced custom rules create high switching costs for Apple users
- Granular filter control enables power-user customization
- Implement light mode to address accessibility requests
- Refine subscription cancellation flow to mitigate exploitation accusations
- Expand filter categories to address emerging in-game ad formats
Next best moves
Audit subscription cancellation flow because users report difficulty canceling trials → reduce financial exploitation complaints
+ 1 more prioritized moveThe counter-intuitive read
The app's maintenance-mode status is actually a brand-aligned…
Read the full takeFeature gaps
Real-time YouTube ad-injection countermeasures (available in AdGuard but missing here)
Since the last report: 1Blocker's competitive position has declined due to a 128-day update gap and persistent failures to counter YouTube's ad-injection, resulting in a shift from mixed to negative user sentiment.
Bottom line
1Blocker's native Safari integration remains a strong retention lever, but the failure to address YouTube ad-injection is actively eroding the user base. Prioritizing stability and billing transparency will mitigate the churn currently driving the negative sentiment trend.
Unlock 3 critical frictions, 3 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is 1Blocker effective for blocking YouTube ads?
How does 1Blocker compare to AdGuard?
Is there a free version of 1Blocker?
What are some alternatives to 1Blocker?
Sources
Report last updated