What about the iOS "background fetch" mode? Apple documentation seems to be quite generic here:
"...At appropriate times, the system gives background execution time to the apps..."
"...Only apps that provide important services to the user are allowed..."
1) Is there a time threshold (explicitly specified or empirical) within which the system passes control to the app in the background? (I could tolerate a 5-min interval)
2) Does anyone can apply for "background fetch" permission?
"...At appropriate times, the system gives background execution time to the apps..."
"...Only apps that provide important services to the user are allowed..."
1) Is there a time threshold (explicitly specified or empirical) within which the system passes control to the app in the background? (I could tolerate a 5-min interval)
2) Does anyone can apply for "background fetch" permission?