如何通过Fabric.io查询特定用户多设备上的应用运行版本？

Absolutely! Since you’ve already implemented setUserIdentifier for your users, you absolutely can look up a specific user’s app version history in Fabric.io (now integrated into Firebase Crashlytics, but the core workflow for legacy Fabric setups stays the same). Here’s how to do it step by step:

• Log into your Fabric.io dashboard and head straight to the Crashlytics section—this is where all user-specific data, including version info, is stored.
• Look for the Users tab or a dedicated search bar for user identifiers (depending on your dashboard layout, it might be labeled "Search Users" or similar).
• Input the user’s identifier (in your example, joesmith@myapp.com) into the search field.
• Once you pull up the user’s profile, you’ll see a clear breakdown of every app version they’ve used, complete with timestamps showing when they were active on each version. You’ll also get extra context like device details, crash history, and session data that can help you confirm exactly which version they’re currently running.

If you still have doubts after checking the version list (like if their behavior doesn’t match the version they claim), you can cross-reference with session data—for example, checking when they last launched the app on each version, or looking for events tied to features that are unique to version 2 vs. 1.1. That should give you definitive proof of which version they’re using.

内容的提问来源于stack exchange，提问作者Alon Raskin