iOS : Region monitoring and battery usage

Question

I would like to use region monitoring in iOS , for location based alerts/calculations.

I'm worried that it would drain the battery. I searched for it on the iOS reference , and couldn't find any evidence for it.

Is that service available at all times , regardless of the region monitoring (i.e. scanned every minute or so...) or should I use the "significant location change" API instead ?

update : so , battery usage isn't dramatic. Its pretty good actually. would like to receive some advice regarding switching between the modes (region/standard).

Answer 1

After checking for almost 2 weeks , I can tell that region monitoring does not significantly drain the battery.
As a matter of fact , it will be an active service in iOS 5 for sure , as the built-in reminders app will use region monitoring 24/7.