Safari has gained a reputation as a privacy-focused browser alternative to Chrome, particularly for iPhone users concerned about data collection. The browser offers several protections including blocking third-party cookies by default, using machine learning to limit cross-site tracking, hiding IP addresses from known trackers, and removing identifying information from URLs. However, despite its privacy marketing, these features have significant limitations and Safari does not provide complete protection against data collection and tracking.

Safari's strongest protections include cross-site tracking prevention, support for phishing-resistant passkeys that use Face ID or Touch ID for login, and Apple Pay integration to avoid sharing card details. Private Browsing mode adds additional layers such as tracker blocking and automatic removal of tracking information from links. However, the browser cannot verify that websites are legitimate or prevent users from entering credentials on convincing phishing sites, does not hide activities from Internet service providers or sites the user is logged into, and cannot stop sites from collecting data that users voluntarily submit. On iPhones, all third-party browsers must use Apple's WebKit rendering engine (outside the EU), limiting privacy differences between browsers more than their marketing suggests, though alternatives like Brave offer stronger content blocking.