On iOS, any app that can browse the web is [restricted](https://developer.apple.com/app-store/review/guidelines) to using an Apple-provided [WebKit framework](https://developer.apple.com/documentation/webkit), so there is little reason to use a third-party web browser.
**Safari** is the default browser in iOS. It includes [privacy features](https://support.apple.com/guide/iphone/browse-the-web-privately-iphb01fc3c85/15.0/ios/15.0) such as Intelligent Tracking Protection, Privacy Report, isolated Private Browsing tabs, iCloud Private Relay, and automatic HTTPS upgrades.
These options can be found in :gear: **Settings** → **Safari** → **Privacy and Security**.
##### Cross-Site Tracking Prevention
- [x] Enable **Prevent Cross-Site Tracking**
This enables WebKit's [Intelligent Tracking Protection](https://webkit.org/tracking-prevention/#intelligent-tracking-prevention-itp). The feature helps protect against unwanted tracking by using on-device machine learning to stop trackers. ITP protects against many common threats, but it does not block all tracking avenues because it is designed to not interfere with website usability.
##### Privacy Report
Privacy Report provides a snapshot of cross-site trackers currently prevented from profiling you on the website you're visiting. It can also display a weekly report to show which trackers have been blocked over time.
Privacy Report is accessible via the Page Settings menu.
##### Privacy Preserving Ad Measurement
- [ ] Disable **Privacy Preserving Ad Measurement**
Ad click measurement has traditionally used tracking technology that infringes on user privacy. [Private Click Measurement](https://webkit.org/blog/11529/introducing-private-click-measurement-pcm/) is a WebKit feature and proposed web standard aimed towards allowing advertisers to measure the effectiveness of web campaigns without compromising on user privacy.
The feature has little privacy concerns on its own, so while you can choose to leave it on, we consider the fact that it's automatically disabled in Private Browsing to be an indicator for disabling the feature.
##### Always-on Private Browsing
Open Safari and tap the Tabs button, located in the bottom right. Then, expand the Tab Groups list.
- [x] Select **Private**
Safari's Private Browsing mode offers additional privacy protections. Private Browsing uses a new [ephemeral](https://developer.apple.com/documentation/foundation/urlsessionconfiguration/1410529-ephemeral) session for each tab, meaning tabs are isolated from one another. There are also other smaller privacy benefits with Private Browsing, such as not sending a webpage’s address to Apple when using Safari's translation feature.
Do note that Private Browsing does not save cookies and website data, so it won't be possible to remain signed into sites. This may be an inconvenience.
##### iCloud Sync
Synchronization of Safari History, Tab Groups, iCloud Tabs and saved passwords are E2EE. However, by default, bookmarks are [not](https://support.apple.com/en-us/HT202303). Apple can decrypt and access them in accordance with their [privacy policy](https://www.apple.com/legal/privacy/en-ww/).
You can enable E2EE for you Safari bookmarks and downloads by enabling [Advanced Data Protection](https://support.apple.com/en-us/HT212520). Go to your **Apple ID name → iCloud → Advanced Data Protection**.
- [x] Turn On **Advanced Data Protection**
If you use iCloud with Advanced Data Protection disabled, we also recommend checking to ensure Safari's default download location is set to locally on your device. This option can be found in :gear: **Settings** → **Safari** → **General** → **Downloads**.
**AdGuard for iOS** is a free and open-source content-blocking extension for Safari that uses the native [Content Blocker API](https://developer.apple.com/documentation/safariservices/creating_a_content_blocker).
AdGuard for iOS has some premium features; however, standard Safari content blocking is free of charge.
Additional filter lists do slow things down and may increase your attack surface, so only apply what you need.
## Criteria
**Please note we are not affiliated with any of the projects we recommend.** In addition to [our standard criteria](about/criteria.md), we have developed a clear set of requirements to allow us to provide objective recommendations. We suggest you familiarize yourself with this list before choosing to use a project, and conduct your own research to ensure it's the right choice for you.
!!! example "This section is new"
We are working on establishing defined criteria for every section of our site, and this may be subject to change. If you have any questions about our criteria, please [ask on our forum](https://discuss.privacyguides.net/latest) and don't assume we didn't consider something when making our recommendations if it is not listed here. There are many factors considered and discussed when we recommend a project, and documenting every single one is a work-in-progress.
### Minimum Requirements
- Must support automatic updates.
- Must receive engine updates in 0-1 days from upstream release.
- 为使浏览器更加尊重隐私所需的任何改变都不应该对用户体验产生负面影响。
- Android browsers must use the Chromium engine.
- Unfortunately, Mozilla GeckoView is still less secure than Chromium on Android.
