Filtr is a new privacy tool that blocks ads in almost every iPhone and Mac app
Filtr is a new privacy tool designed to block ads across all Apple devices, including iPhones, iPads, and Macs. Developed by Kaylee Serena Calderolla, it utilizes a new URL filters feature in iOS 26 and macOS 26 to enhance user privacy beyond traditional ad blockers. The tool requires a $5 annual subscription and aims to provide a cleaner app experience by minimizing ad exposure.
- ▪Filtr is the first device-level ad blocker that works across all of Apple's main products.
- ▪The tool is created by Kaylee Serena Calderolla, who also developed the Safari ad blocker Wipr.
- ▪Filtr uses URL filters to block ads at the network level, rather than just in the browser.
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | TechCrunch |
| Canonical URL | https://techcrunch.com/2026/06/04/filtr-is-a-new-privacy-tool-that-blocks-ads-in-almost-every-iphone-and-mac-app/ |
| Publication time | Thu, 04 Jun 2026 21:44:09 +0000 |
| Retrieval time | 2026-06-04T21:45:26.762Z |
| Last seen | 2026-06-04T21:45:26.762Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | boVOmpHodFx4 |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Using an ad blocker is good for your security, privacy, and even the FBI recommends them to defend from online harms. But as much as ad blockers are great for cleaning up your browsing experience, these tools often do little to prevent the pervasive tracking from ads within apps. Now, thanks to a new feature in iOS 26 and macOS 26, one developer has built the first device-level ad blocker that works across all of Apple’s main products — iPhones, iPads, and Macs — and isn’t just limited to the browser. Filtr is a new tool created and maintained by Kaylee Serena Calderolla, the developer behind the popular Safari browser ad blocker Wipr.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at TechCrunch.
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