Microsoft engineers claim Apple's WebKit requirement causes 28.6% browser performance penalty on iOS
By
Thomas Claburn
Summary
Microsoft engineers have documented a "performance tax" on iOS browsers caused by Apple's requirement that all iOS browsers use the WebKit engine (the same engine powering Safari). According to their analysis, this restriction results in a 28.6% performance hit, meaning rival rendering engines could make pages load almost 30% faster on iPhones. The article compares this to Apple's well-known 30% App Store commission, framing it as another form of Apple's restrictive control over iOS.
Source
Key quotes
· 3 pulledThe performance tax comes to 28.6 percent, almost as much as Apple's 30 percent commission rate.
Critics and competitors have long complained about the 'Apple Tax' – the sales commission developers are obliged to pay on App Store sales and in-app purchases.
Rival rendering engines could make pages load almost 30% faster on iPhones, Redmond claims.
You might also wanna read
Japan Mandates Apple to Allow Third-Party Browser Engines on iOS by December
Japan's Smartphone Act has prohibited Apple's ban on third-party browser engines on iOS, aiming to promote competition and improve web app p
open-web-advocacy.org·10mo ago
Apple's Browser Engine Restrictions Persist Despite DMA - Impact on Open Web Advocacy
Apple's rules and technical restrictions are hindering other browser vendors from offering their engines on iOS in the EU. Despite claims of
open-web-advocacy.org·11mo agoApple Allows Alternative Browser Engines in iOS 26.2 for Japan Users
Apple is allowing alternative browser engines (non-WebKit) in iOS 26.2 and later for users in Japan. This applies to two types of apps: dedi
Technical Critique of WebKit: Development Challenges and Why Hopp is Moving to Rust
The article is a critical analysis of WebKit (Safari's browser engine) based on the author's experience building Hopp, a screensharing appli
Apple's Safari Restrictions on iOS/iPadOS Limit Progressive Web App Features to Protect App Store Revenue
The article criticizes Apple for intentionally limiting Progressive Web App (PWA) features in Safari on iOS and iPadOS to drive more App Sto
Real-World Performance Analysis: Svelte Outperforms Other JavaScript Frameworks
The article examines JavaScript framework performance through real-world testing rather than synthetic benchmarks, focusing on Svelte's spee
