Google Chrome shines on iPhone with rock-solid performance, a sleek interface designed for one-handed navigation, and effortless syncing across devices. Yet, Google's reputation raises valid privacy concerns.
Contents:
1. Clear browsing data
2. Use incognito mode
3. Manage sync settings
4. Change search engine
5. Turn off search suggestions
6. Turn off location services
7. Delete account data
8. Disable advertisements
9. Disable the Suggested Sites widget
10. Disable lock screen suggestions
Privacy matters. 
Unlike Safari's content blockers or Brave's always-on incognito mode, Chrome on iOS falls short in built-in privacy features. That said, these practical steps can significantly enhance your protection without switching browsers.
Chrome stores cookies on your iPhone to remember logins and preferences. While convenient, some track your activity across sites for targeted ads and more.
Your browsing history is also saved locally, posing risks if others access your device.
To reclaim privacy, especially from intrusive ads or sensitive sites, go to Chrome Settings > Privacy & Security > Clear Browsing Data. Select Browsing History, Cookies and Site Data, or both. Include Cached Images and Files for troubleshooting.

Set the time range—last hour, 24 hours, or All Time—then tap Clear Browsing Data.
Warning: Avoid clearing saved passwords or autofill data unless necessary.
Skip manual clearing with incognito mode, akin to Safari's Private Browsing—it auto-deletes cookies and history after each session.
Open the Chrome menu and tap New Incognito Tab, or access via the tab switcher for private surfing.

Warning: Incognito doesn't hide your IP or block fingerprinting—you're not fully anonymous.
Ideal for sensitive sessions, but not daily use due to repeated logins.
Chrome Sync keeps bookmarks, tabs, and more consistent across devices—a boon for productivity, but a privacy risk if autofill or passwords sync unwanted.
Customize via Chrome Settings > Sync & Google Services > Manage Sync. Disable 'Sync everything,' then toggle off specific data types.

Add a sync passphrase for extra security, even if your Google Account is compromised.
Google dominates search but prioritizes data collection. Switch to privacy-focused alternatives like DuckDuckGo, Qwant, or Startpage.

Follow Chrome's settings to set a new default—simple steps for better control.
Autocomplete sends keystrokes live to Google, potentially revealing patterns that identify you.
Disable in Chrome Settings > Sync & Google Services, toggling off Autocomplete searches and URLs.

This holds data until you hit search.
Sites crave your location for personalization, but it's often excessive.
In iPhone Settings > Chrome > Location, choose 'Ask Next Time' or 'Never.'

Google tracks Chrome activity across services for suggestions and ads—local clearing won't touch it.
Visit Chrome Settings > Sync & Google Services > Manage Your Google Account > Data & Personalization > Web & App Activity to review and delete.

No native blockers? Use DNS changes on Wi-Fi or cellular to curb ads and some trackers—detailed guides available.
Chrome's home screen widgets include Suggested Sites based on your history—risky around others.
In Today View, tap Edit, then delete Chrome Suggested Sites.

Siri may show Chrome-based tips on lock screen.
Stop it: iPhone Settings > Chrome > Siri & Search > toggle off Show Siri Suggestions.

Chrome on iOS isn't the most private browser, but these tips make a real difference. Choose what fits your needs—Chrome's iPhone polish is worth safeguarding.
Want superior privacy? Explore top iPhone browsers like Safari or Brave.