Hi everyone,
I am currently working on a specialized analytics and time-tracking application, and I am trying to find a reliable way to detect which app the user currently has open in the foreground in real-time.
On Android, this is typically handled via Accessibility Services or UsageStats, but I am well aware of iOS’s strict sandboxing rules and privacy protections.
So far, I have researched and tested a few workarounds, but none perfectly fit the use case:
Screen Time API (FamilyControls / DeviceActivity): This is fantastic for blocking apps or getting daily aggregate usage, but it does not provide real-time callbacks or the bundle ID of the app currently on the screen. MDM (Mobile Device Management): Requires enterprise enrollment and wiping the device, which isn't feasible for a consumer-facing app. ReplayKit (Broadcast Extension): We are currently utilizing RPBroadcastSampleHandler to screen record the device and using OCR and Core ML to visually identify the app (e.g., detecting the YouTube UI). However, this is incredibly resource-intensive and pushes the 50MB Jetsam limit for extensions. My Question: Is there any official API, restricted entitlement, or system notification (like NSWorkspace.shared.frontmostApplication on macOS) that allows a background process to simply read the bundleID of the active foreground app on iOS?
If not, is ReplayKit combined with OCR or Machine Learning truly the only way to detect what app a user is actively viewing on iOS without a jailbreak?
Thank you in advance for any insights!