Since iOS set many restriction on the background task, the iOS operation is a bit different from the android version.
To preserve the battery life, iOS keeps the background execution time to a minimum. So there is 5 minutes logging time limit and local notification reminder will alert you to stop / reenable the logger. Also, please make sure your iOS device maintains strong wifi connection and high battery level before enabling the logger.
DaveMoi said:
Looks like the vision utility with logging and pw protection is available in the Apple app store....