Start with built-in tools, then review retained diagnostic records if you need more context. These guides cover your own devices and files you have explicit authorization to analyze.
How to Check if Someone Used Your iPhone
Four ways to review activity: App Privacy Report, Screen Time, Battery activity and diagnostic logs.
Read guide →How to Check App Activity History on iPhone
Review app activity by date and device, compare available sources, and understand what a diagnostic timeline can show.
Read guide →Screen Time vs App Privacy Report vs iPhone diagnostic logs
Compare iPhone usage totals, sensor access and sysdiagnose records. Find the right source for your question and understand where local Screen Trace reports fit.
Read guide →Can you check AirDrop history on an iPhone?
Understand transfer direction, status and retained record limits.
Read guide →iPhone Screen Time vs. Battery Activity: What Can They Show?
Compare usage totals, on-screen and background activity, and learn why Screen Time and Battery can show different numbers.
Read guide →Choose a tool for your device
Screen Trace for iPhone activity records · Wireless Trace for saved Wi-Fi records · Mac Time Trace for Mac usage tracking