geofenced local notifications and region monitoring performance cost and limit

Question

Is there a limit on how many CLRegions can one set for getting local notifications in ios? Or is there maybe a performance cost(MKMapView gets slow or takes a long time to load or maybe a significant battery consuption occurs) on setting too many CLRegions? For example, would 50 or 150 be too many?

Similar option is to use region monitoring and specify CLCircularregions of interest. Is there a limit on how many of them can be set and what performance impact to they cause?

score 1 · Accepted Answer · edited May 23 '17 at 11:45

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According to the Apple docs, you can register up to 20 regions at a time.

An app can register up to 20 regions at a time. In order to report region changes in a timely manner, the region monitoring service requires network connectivity.

If you need to track more than 20 here is an answer which gives a strategy by loading new regions when a significant location change event occurs.

edited May 23 '17 at 11:45

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answered Feb 12 '16 at 18:42

ama1111

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geofenced local notifications and region monitoring performance cost and limit

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