集成Google Sign In后获取更多用户信息及与Facebook登录对比咨询

Great question—comparing these two auth platforms for data access is super common when building apps, so let's break this down clearly.

What Extended Data Can Google Sign-In Actually Provide? #

Google's main tool for pulling beyond basic profile info is the Google People API, paired with specific OAuth scopes. Here's what you can access (with user approval, of course):

• Enhanced contact & profile details: Beyond name/email/avatar, you can get secondary email addresses, phone numbers (requires a sensitive scope that needs Google's approval), birthday, gender, and user-provided location info from their Google Profile.
• Work & education history: Any job titles, company names, or school info the user has publicly added to their Google Profile.
• Social connections: You can pull a list of the user's Google Contacts (but only those who also use Google services and have their contact info shared), plus users they follow on Google services like YouTube.
• Service-specific data: If you request additional scopes for other Google APIs (like YouTube Data API or Google Calendar API), you can access things like the user's subscribed YouTube channels, saved playlists, or calendar events—again, only if the user grants permission.

What Google Doesn't Let You Access (Compared to Facebook's "Liked Pages") #

This is the big difference from Facebook:

• Google doesn't have a direct equivalent to Facebook's "user-liked public pages" data. Google's ecosystem prioritizes user privacy around casual interactions (like YouTube video likes, search history, or map reviews)—these aren't exposed to third-party apps, even with authorization.
• You can't access any of the user's private activity data: browsing history, search queries, or unshared personal notes are completely off-limits, no exceptions.

Google Sign-In vs Facebook Login: Pros & Cons for Data Access #

Let's directly compare based on your use case:

• Facebook Login's Edge: If you need user interest data (liked pages, interest tags) or rich social graph info (friends who use your app), Facebook is the clear winner. This data is great for building user profiles, targeted recommendations, or social features. Just be aware: Facebook's permission review process is strict, and users are increasingly wary of sharing this type of data.
• Google Sign-In's Edge: Google excels at providing verified, real-world identity data (work history, contact info) that's useful for apps needing authentication, user verification, or integration with other Google services (like syncing calendars or YouTube content). It also has a massive global user base, making it easier for international users to sign up.
• Shared Rule: For both platforms, you can only access data the user explicitly approves, and you must justify every permission you request in your app's review. Over-requesting permissions will get your app rejected and turn users off.

Final Takeaway #

If your app relies on interest-based personalization or social features, Facebook Login will give you more relevant data. If you need trusted identity data or integration with Google's ecosystem, Google Sign-In is the better pick. Always prioritize transparency with users—explain exactly why you need any extra data, and only ask for what you truly need.

内容的提问来源于stack exchange，提问作者badrobot15