Hey ! This is prohbited for privacy reasons, the DeviceActivityExtension can only read from the shared app group, but cannot write. You can write inside the extension sandbox, but those won't be readable by the main application.

Hey rebounding on this, I work at Opal, and we built a product for schools that looks exactly like what you're mentioning, and launched it at Harvard-Westlake School, the top high school in LA, you can check it out here -> https://www.opal.so/for-schools [quote='803911021, jjguth4, /thread/803911, /profile/jjguth4'] If anyone has any guidance here, it would be so helpful! My boss (Head of School) is super interested in this idea and significantly prefers it to every other alternative that he has encountered. The problem is this idea does not exist yet! [/quote]

Hey, I've opened a bug report (FB21974097) for this, can you do the same ?

Yes, this is on purpose to preserve user privacy, as stated in the documentation