# Ka-Block! — user reviews > 141 indexed App Store user reviews of Ka by David Graham & Josh Peek, rated 4.20/5 from 216 ratings. - Source: https://appshunter.io/ios/app/ka-block/id1037173557/reviews - App overview in markdown: https://appshunter.io/ios/app/ka-block/id1037173557.md - Rating breakdown: 5★ 155 · 4★ 12 · 3★ 9 · 2★ 9 · 1★ 31 ## What do users think of Ka? Overall sentiment: mixed **Pros** - 🚀 Fast and lightweight performance - 💰 Completely free with no in-app purchases - 🔒 Open source with no data collection - 👍 Simple and easy to set up - ✅ Blocks most obtrusive ads effectively - 🌐 Works across Mac, iPad, and iPhone ecosystem - 🛡️ Doesn't break website functionality - ⚡ Improves page load times - 🎯 Effective on news and content sites **Cons** - ❌ Inconsistent ad blocking performance across platforms - 📱 Doesn't block ads on YouTube or Facebook - 🐛 Causes blue filter overlay on some news sites - ⚠️ Blocks some legitimate website content - 🚫 Fails to block certain ad types (gifs, flash, pop-unders) - 🔧 No on/off toggle in app interface - 📊 Limited blocking compared to competitors like AdGuard - 🔐 Privacy concerns from older reviews about data collection - ⏱️ Requires app updates to update filter lists **Commonly reported bugs** - Blue semi-opaque filter appearing on images on certain news sites - Fails to block ads despite being enabled - Creates unwanted popups instead of blocking them - Breaks website functionality on some domains - Doesn't work with subscription-based newspaper sites - Inconsistent performance across different websites - Unable to activate extension on some devices **Most requested features** - Whitelist/exclude option for websites to support - Toggle to easily enable/disable the blocker - Auto-update filter lists without app updates - Block autoplay videos on news sites - Display blocked tracker count for transparency - Better blocking for YouTube ads - Facebook tracker blocking ## Newest reviews (10 of 141) ### 2/5 — Free - but minimal *2026-05-21, version 3.5* Blocks the basic ads on some websites, but ultimately doesn’t do much. A few tests put it at about 30% effectiveness, hence two stars. ### 4/5 — ЕДИНСТВЕННОЕ НА ДАННЫЙ МОМЕНТ РАБОЧЕЕ РАЗШИРЕНИЕ НА АЙФОН *2024-12-30, version 3.5* Просто работает. А так же скрывает пустоту от удалённого банера ### 5/5 — Does what it says *2023-04-09, version 3.5* Gets the job done ### 5/5 — Unbeliveably good! *2023-03-29, version 3.5* KA Block! does unbelievably good job. I had never had a problem with it. Compared to android counterparts, it is superbly effective, fast, and light. Thanks to the developers for not collecting data as well. ### 5/5 — Best free addblocker *2023-03-26, version 3.5* Thank to developer 76/100 content blocking. Waiting for update 😊 ### 5/5 — Funciona muito bem *2023-02-22, version 3.5* A extensão cumpre o que promete e sem incomodar. É de código aberto e não coleta nenhum dado. Parabéns aos desenvolvedores! ### 5/5 — Loving it *2023-01-07, version 3.5* Great app, best ad blocking results and free. I would love to be able to pay/donate to the developers. ### 4/5 — Four Stars But I Just Started Using It *2022-12-26, version 3.5* I give 4 stars to Ka-Block. It works, doesn’t break any websites so far and it doesn’t delay site loading, so far. Why not give it 5 stars? I think I’ve used it for about a week, so I haven't really used it enough to give it a 5-star rating, yet. I really appreciate that this app doesn’t break sites or delay site loading, like some ad and track blocking apps do. Something that puzzles me, though, is that the app has no “on” or “off” setting, that I could find. It is “on” once it is installed. Wish I knew more about it. ### 1/5 — Does not work. *2022-11-30, version 3.5* Installed 3 days ago, latest ios, did not remove a single ad or blocked anything!! Utterly useless. ### 5/5 — The best! *2022-11-10, version 3.5* Funcional e leve, o melhor dentre todos que já testei, inclusive utilizo no MacOS também, só sugeriria atualizarem a lista negra com mais frequência, de resto 5 estrelas fácil! ## Most critical reviews (10 lowest-rated) ### 1/5 — Ad guard better *2025-10-15, version 3.5* Website said this blocks adds on not only safari but other apps to, but it doesn’t do that. Ad guard is better so don’t waste time on this 😐 ### 1/5 — Не работает *2025-08-02, version 3.5* Вообще не работает, стало только хуже, теперь при просмотре фильмов/ сериалов, страница перезагружается и включается реклама. При просмотре 25 минутной серии теперь 3 рекламы вместо одной ### 1/5 — :( *2024-06-01, version 3.5* It is not up to date and I did not see much use for it. It doesn't block ads. Please let me know if there is anything I don't know. ### 1/5 — Does not block youtube ads *2024-02-25, version 3.5* Does not block youtube ads ### 1/5 — Doesn’t work on YouTube. *2023-10-01, version 3.5* Doesn’t block ads on YouTube. ### 1/5 — Didn’t do well compared to other free apps *2023-09-23, version 3.5* Did poorly in various Adblock testing websites for $0. ### 1/5 — Doesn’t work *2023-07-03, version 3.5* It doesn’t work for me ### 1/5 — Doesn’t block YouTube Ads *2023-02-03, version 3.5* It loads webpages faster for sure but those annoying ads from YouTube, that still exist. Can the team have a look into that ? ### 1/5 — Doesn’t block ads *2023-01-04, version 3.5* Every time I play games or go on any website with ads, I expect it to work, yet ads still pop up regardless of me having tho is app. I don’t recommend this adblocker if you’re looking for one. Keep searching! ### 1/5 — Totally not working *2022-12-08, version 3.5* Not blocking any ads ## Most praised reviews (10 highest-rated) ### 5/5 — Ka-Blocking brilliant! *2026-06-21, version 3.5* Dose what it’s supposed to do and dosnt use or collect any of you data. Used this app for years, and it being free is an extra bonus. Thank you for your great work and app developers ☝🏻 ### 5/5 — Works great! *2025-09-16, version 3.5* And it’s free! ### 5/5 — Perfeito *2024-08-27, version 3.5* Fácil de operar e faz totalmente o que promete. Muito bom mesmo. ### 5/5 — O básico perfeito *2023-12-12, version 3.5* O melhor Ad block que achei sem dúvidas, simples e fácil de operar, além de ser muito leve!! Show de bola ### 5/5 — Does what it’s supposed to *2023-11-11, version 3.5* It’s open source and doesn’t collect my data, so that’s great. It’s also FREE! What more can you ask for. ### 5/5 — (Abandonado) *2023-10-12, version 3.5* Actualizado 12/10/23 Tras 1 año sin actualizaciones, ya comienzan a salir algunos anuncios en páginas que antes no salían. Ninguno de los dos desarrolladores contestan en GitHub a las peticiones, lamentablemente parece que el proyecto a sido abandonado :( *** Grata sorpresa. Ka-Block! Funciona y está en GitHub. Las listas que tiene por ahora me funcionan muy bien. ### 5/5 — Best *2023-09-28, version 3.5* Best ### 5/5 — Super recomendo *2023-09-07, version 3.5* O melhor ad block que vi por enquanto, super simples e cumpre oque promete, parabéns aos seus desenvolvedores. ### 5/5 — Great, Simple Ad Blocker *2023-05-30, version 3.5* Edit: I realized Safari has an option to allow you to chose websites to exclude from content blockers. With that in mind, I think Ka-Block is nearly perfect! Original: Ka-Block works great. I’ve almost never had it interfere with website content. Only one complaint: there is no whitelist option to exclude websites you want to support. ### 5/5 — Genius *2023-05-22, version 3.5* Thank you developers --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-27.*