Explanation:
On iOS, apps use WKWebView, which is based on WebKit.

ALSO KNOW (related points):
• Which engine does Chrome for Android use? → Blink
• Which engine is Samsung Internet built on? → Chromium (Blink)
• How did Opera Mini reduce data usage on slow mobile networks? → It rendered and compressed pages on Opera's servers before sending them to the phone
• Which browser engine do Electron desktop apps (such as Visual Studio Code) embed? → Chromium
• What is Lynx? → A text-only web browser that runs in a terminal
• How often does Chrome release a new major stable version? → About every 4 weeks
• Which built-in PDF viewer does Firefox use? → PDF.js, written in JavaScript
• What does Reader View (or Reader Mode) in browsers do? → It strips away clutter such as ads and sidebars and shows the main article text in a clean layout
• In a single-page application, what does history.pushState() allow? → Changing the URL and adding a history entry without reloading the page
• Which video codec is the most universally supported for HTML5 across all major browsers? → H.264 (AVC) in an MP4 container