I really like the iOS micro:bit app as do my class. I was intrigued by the data feature when it came out but had not used it. Delighted to see this:

Fetch MY_DATA

Selecting this option lets you retrieve data that has been logged during a data-logging session with the micro:bit.  This is only available with Version 2 micro:bits.

iOS App – Summary of changes in August 2023 update : Help & Support