--- title: "Ka-Block! - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Ka-Block! is a content blocker for Safari that prevents ads and tracking scripts from slowing down web pages you visit. Many sites use third-party scripts to track your behavior across the web, causi" --- # Ka-Block! — United States > Open-source ad blocking ![Ka-Block! App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/b8/26/bb/b826bb48-09bc-090b-52af-853a181887cf/AppIcon-0-0-1x_U007emarketing-0-0-0-9-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/434x0w.png) **Developer:** [Negative Code](https://apptail.io/developer/negative-code-ifk) **Category:** Utilities **Rating:** 4.2/5 (215 ratings) **Price:** Free **Bundle ID:** com.kablock.ios **Store:** Apple App Store **Country:** United States **Version:** 3.5 (released 2021-11-06) **Original Release:** 2015-09-24 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1037173557) **AppTail Page:** [https://apptail.io/app/ka-block-gEh/united-states](https://apptail.io/app/ka-block-gEh/united-states) ## Ka-Block! Description Ka-Block! is a content blocker for Safari that prevents ads and tracking scripts from slowing down web pages you visit. Many sites use third-party scripts to track your behavior across the web, causing pages to load slowly and draining your phone’s battery. Blocking these scripts dramatically improves page load time, data usage, and battery life. - Fast, curated filter list - Open source - Also available for Safari on Mac Protecting privacy and performance on the web is important. We hope you enjoy Ka-Block! ## Ka-Block! Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/fc/bd/ef/fcbdeffb-d5da-d9c7-03d8-811b41fcaba1/pr_source.png/1242x2688.png) ## Ka-Block! Rating Breakdown in United States - 5 stars: 154 (72%) - 4 stars: 12 (6%) - 3 stars: 9 (4%) - 2 stars: 10 (5%) - 1 stars: 30 (14%) ## Ka-Block! Reviews in United States ### ***** "Works great!" And it’s free! -- agent_theory, 2025-09-16 ### *---- "Didn’t do well compared to other free apps" Did poorly in various Adblock testing websites for $0. -- Admittedly Too Smart, 2023-09-23 ### *---- "Doesn’t work" It doesn’t work for me -- Jamal29476, 2023-07-03 ### ***** "Great, Simple Ad Blocker" 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. -- Eph2.8, 2023-05-30 ### ***** "Unbeliveably good!" 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. -- Azrasena, 2023-03-29 ### *---- "Doesn’t block ads" 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! -- Burpy_Brisa, 2023-01-04 ### ****- "Four Stars But I Just Started Using It" 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. -- TheNewGuyHere, 2022-12-26 ### ***** "simple yet effective" nice adblocker, I read the github description and love the approach to adblocking the developers use in this app, thanks :) -- kentucky_ken, 2022-10-15 ### ****- "Needs an update" This is a fantastic app. Unfortunately it has developed a problem. Images on certain news web sites will for no reason take on a semi opaque blue filter look. Different images. Changing from blue to correct. The image is impossible to decipher. Click on any link and the blue filter goes away. When Ka Block is disabled the blue cast filter problem is turned off. This problem doesn’t do this on all web sites. When I turned ka block off I was shocked to see the number of ads. SHOCKED! I will keep ka blocked turned on bc anything is better than ad saturation. If you guys can, please fix this. I’m on an iPhone 11 iOS up to date. Thanks. -- timster51, 2022-09-27 ### ***-- "Developer, please update. It isn’t blocking all ads." To the developers: please update this extension. It is not blocking all ads. For example, I used an ad block tester page and it was not able to block 1. gifs from playing, 2. it loaded a flash banner even though it was not able to execute it, 3. it played an interstitial ad, 4. it shows and plays disable ad block warning ads, 5. it executed bugsnag script, 6. It executed sentry script, 7. it autoredirected me to a page with unsafe content, 8. it displayed pop under ads, push notification request ads, and some banner ads. Your app needs updating. -- badkitty_, 2022-09-05 [View all Ka-Block! reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Ka-Block! Discovered Keywords - ka ## Apps Similar to Ka-Block! - [Roadblock - Content Blocker](https://apptail.io/app/roadblock-content-blocker-KEh/united-states) - [Ad Blocker for Safari — Bolt](https://apptail.io/app/ad-blocker-for-safari-bolt-uJh/united-states) - [AdGuard Ad Blocker for Safari](https://apptail.io/app/adguard-ad-blocker-for-safari-YNh/united-states) - [Ad blocker by Magic Lasso](https://apptail.io/app/ad-blocker-by-magic-lasso-Yym/united-states) - [1Blocker: Ad Blocker](https://apptail.io/app/1blocker-ad-blocker-ayo/united-states) - [Ad Blocker VPN & DNS – Blokada](https://apptail.io/app/ad-blocker-vpn-dns-blokada-oav/united-states) - [Ad Blocker ·](https://apptail.io/app/ad-blocker-Vtv/united-states) - [Do Not Track](https://apptail.io/app/do-not-track-ffy/united-states) - [Super Agent for Safari](https://apptail.io/app/super-agent-for-safari-zgz/united-states) - [Hush Nag Blocker](https://apptail.io/app/hush-nag-blocker-GQtb/united-states) ## Ka-Block! Available In - [United States](https://apptail.io/app/ka-block-gEh/united-states) - [Germany](https://apptail.io/app/ka-block-gEh/germany) - [Brazil](https://apptail.io/app/ka-block-gEh/brazil) - [United Kingdom](https://apptail.io/app/ka-block-gEh/united-kingdom) - [Italy](https://apptail.io/app/ka-block-gEh/italy) - [India](https://apptail.io/app/ka-block-gEh/india) - [Canada](https://apptail.io/app/ka-block-gEh/canada) - [Australia](https://apptail.io/app/ka-block-gEh/australia) - [South Korea](https://apptail.io/app/ka-block-gEh/south-korea) - [Spain](https://apptail.io/app/ka-block-gEh/spain) - [Sweden](https://apptail.io/app/ka-block-gEh/sweden) - [Saudi Arabia](https://apptail.io/app/ka-block-gEh/saudi-arabia) - [Netherlands](https://apptail.io/app/ka-block-gEh/netherlands) - [France](https://apptail.io/app/ka-block-gEh/france) - [Türkiye](https://apptail.io/app/ka-block-gEh/turkey) - [Poland](https://apptail.io/app/ka-block-gEh/poland) - [Russia](https://apptail.io/app/ka-block-gEh/russia) - [Switzerland](https://apptail.io/app/ka-block-gEh/switzerland) - [Denmark](https://apptail.io/app/ka-block-gEh/denmark) - [Mexico](https://apptail.io/app/ka-block-gEh/mexico) - [Philippines](https://apptail.io/app/ka-block-gEh/philippines) - [Belgium](https://apptail.io/app/ka-block-gEh/belgium) - [Portugal](https://apptail.io/app/ka-block-gEh/portugal) - [Austria](https://apptail.io/app/ka-block-gEh/austria) - [Norway](https://apptail.io/app/ka-block-gEh/norway) - [Czechia](https://apptail.io/app/ka-block-gEh/czechia) - [New Zealand](https://apptail.io/app/ka-block-gEh/new-zealand) - [Finland](https://apptail.io/app/ka-block-gEh/finland) - [Chile](https://apptail.io/app/ka-block-gEh/chile) - [Slovakia](https://apptail.io/app/ka-block-gEh/slovakia) - [Greece](https://apptail.io/app/ka-block-gEh/greece) - [Vietnam](https://apptail.io/app/ka-block-gEh/vietnam) - [Singapore](https://apptail.io/app/ka-block-gEh/singapore) - [Japan](https://apptail.io/app/ka-block-gEh/japan) - [Ireland](https://apptail.io/app/ka-block-gEh/ireland) - [Israel](https://apptail.io/app/ka-block-gEh/israel) - [Hong Kong SAR China](https://apptail.io/app/ka-block-gEh/hong-kong) - [Taiwan](https://apptail.io/app/ka-block-gEh/taiwan) - [Thailand](https://apptail.io/app/ka-block-gEh/thailand) - [Lithuania](https://apptail.io/app/ka-block-gEh/lithuania) - [Bahrain](https://apptail.io/app/ka-block-gEh/bahrain) - [Pakistan](https://apptail.io/app/ka-block-gEh/pakistan) - [Peru](https://apptail.io/app/ka-block-gEh/peru) - [South Africa](https://apptail.io/app/ka-block-gEh/south-africa) - [Nepal](https://apptail.io/app/ka-block-gEh/nepal) - [Estonia](https://apptail.io/app/ka-block-gEh/estonia) - [Kuwait](https://apptail.io/app/ka-block-gEh/kuwait) - [Kazakhstan](https://apptail.io/app/ka-block-gEh/kazakhstan) - [Sri Lanka](https://apptail.io/app/ka-block-gEh/sri-lanka) - [Luxembourg](https://apptail.io/app/ka-block-gEh/luxembourg) - [Slovenia](https://apptail.io/app/ka-block-gEh/slovenia) - [Malta](https://apptail.io/app/ka-block-gEh/malta) - [Armenia](https://apptail.io/app/ka-block-gEh/armenia) - [Angola](https://apptail.io/app/ka-block-gEh/angola) - [Argentina](https://apptail.io/app/ka-block-gEh/argentina) - [Brunei](https://apptail.io/app/ka-block-gEh/brunei) - [Botswana](https://apptail.io/app/ka-block-gEh/botswana) - [Belarus](https://apptail.io/app/ka-block-gEh/belarus) - [Cyprus](https://apptail.io/app/ka-block-gEh/cyprus) - [Algeria](https://apptail.io/app/ka-block-gEh/algeria) - [Ecuador](https://apptail.io/app/ka-block-gEh/ecuador) - [Egypt](https://apptail.io/app/ka-block-gEh/egypt) - [Grenada](https://apptail.io/app/ka-block-gEh/grenada) - [Ghana](https://apptail.io/app/ka-block-gEh/ghana) - [Guyana](https://apptail.io/app/ka-block-gEh/guyana) - [Hungary](https://apptail.io/app/ka-block-gEh/hungary) - [Iceland](https://apptail.io/app/ka-block-gEh/iceland) - [Jordan](https://apptail.io/app/ka-block-gEh/jordan) - [Cayman Islands](https://apptail.io/app/ka-block-gEh/cayman-islands) - [Lebanon](https://apptail.io/app/ka-block-gEh/lebanon) - [Latvia](https://apptail.io/app/ka-block-gEh/latvia) - [Madagascar](https://apptail.io/app/ka-block-gEh/madagascar) - [United Arab Emirates](https://apptail.io/app/ka-block-gEh/united-arab-emirates) - [Mauritius](https://apptail.io/app/ka-block-gEh/mauritius) - [Qatar](https://apptail.io/app/ka-block-gEh/qatar) - [Senegal](https://apptail.io/app/ka-block-gEh/senegal) - [Tunisia](https://apptail.io/app/ka-block-gEh/tunisia) - [Uzbekistan](https://apptail.io/app/ka-block-gEh/uzbekistan) - [Uganda](https://apptail.io/app/ka-block-gEh/uganda) - [North Macedonia](https://apptail.io/app/ka-block-gEh/north-macedonia) - [Uruguay](https://apptail.io/app/ka-block-gEh/uruguay) - [Barbados](https://apptail.io/app/ka-block-gEh/barbados) - [Venezuela](https://apptail.io/app/ka-block-gEh/venezuela) - [British Virgin Islands](https://apptail.io/app/ka-block-gEh/british-virgin-islands) - [Kenya](https://apptail.io/app/ka-block-gEh/kenya) - [Oman](https://apptail.io/app/ka-block-gEh/oman) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*