Side by side
| Feature | Zenfeed | AI Content Shield |
|---|---|---|
| Price | Free, no tiers | Freemium — free core blocking; Pro subscription (price not published) for advanced detection and custom filters |
| Platforms | LinkedIn, X/Twitter, YouTube (opt-in) | Google AI Mode/AI Overviews, YouTube, TikTok, X/Twitter, Instagram, Facebook, Threads, Reddit, Pinterest, LinkedIn, Gmail, Amazon, eBay, general web |
| Account required | No | Not required |
| AI-content detection | Yes — Rest from AI keyword/phrase sweep, active only while the timer runs | Yes — always-on blocking across all listed platforms |
| Promoted + Suggested filtering | Yes — promoted, suggested, the YouTube Shorts shelf, and LinkedIn Company Page posts, each its own toggle | Not part of its stated feature set — focused on AI-generated content specifically |
| Keyword blocking | Yes — custom keyword list, always on | Custom filters available in the Pro tier |
| Timed auto-restore | Yes — 15/30/60 min or a custom duration, everything comes back automatically when the timer ends | No — always-on blocking, not time-boxed |
Why someone might choose Zenfeed
Zenfeed is fully free with no subscription tier, and pairs AI detection with promoted/suggested post filtering and custom keyword blocking, which aren't part of AI Content Shield's stated feature set. The Rest from AI timer is also a different mechanic entirely — a scheduled break that ends and restores itself, rather than an always-on filter.
Why someone might still want AI Content Shield
AI Content Shield's platform coverage is far broader — Reddit, Facebook, Instagram, Threads, Pinterest, Gmail, Amazon, eBay, general web, and Google's AI Mode/AI Overviews are all places Zenfeed doesn't reach at all. It also has a larger install base and rating (4.4★, 222 ratings, 10,000+ users), which points to a longer track record than Zenfeed's.
Source
AI Content Shield facts above — pricing, platforms, ratings, and what it can filter — are from its live Chrome Web Store listing, checked July 23, 2026: 4.4★ (222 ratings), 10,000+ users, updated July 22, 2026.
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Frequently Asked Questions
Does Zenfeed or AI Content Shield cover more platforms?
AI Content Shield covers far more ground — Google's AI Mode and AI Overviews, YouTube, TikTok, X, Instagram, Facebook, Reddit, LinkedIn, Gmail, and general web pages among others. Zenfeed only works on LinkedIn, X, and YouTube. If breadth across many sites matters most, AI Content Shield reaches further; if you live in those three feeds, Zenfeed goes deeper on them.
Which extension is better for blocking AI content on YouTube?
Both work on YouTube, but differently. AI Content Shield blocks AI-generated content there continuously, with no time limit. Zenfeed's Rest from AI is a timed break — set 15, 30, or 60 minutes, or a custom length, and everything returns when the timer ends. For permanent hiding, AI Content Shield fits better; for a temporary break, Zenfeed's timer is the closer match.
Other comparisons
Weighing up more than one option? These cover the rest of the field.