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Standard iOS location service and significant change location service and regional monitoring

I am developing an iOS application, one of its main functions is listening to the user's location. I need high location accuracy to know when a user is in certain areas, and I'm not sure which location service I should use.

AFAIK, a significant location change service provides low accuracy, right? I do not know exactly what a “significant change” should understand. I didn’t read about its accuracy in Apple docs, but I read something about it in some posts, so it won’t meet my needs. If so, I have to choose between a standard location service and regional monitoring. I know that a standard service can be set at the level of accuracy and the remote filter, but that seems to drain the battery. On the other hand, regional monitoring seems more efficient in terms of power level, but I'm not sure if I can achieve high accuracy with this service. And I need to track many areas; I do not know if this is possible, or only one can be provided.

Thanks in advance

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2 answers

AFAIK, a significant change in location service provides low accuracy, right?

Yes, forget about it for high location accuracy.
Either you are satisfied with approximately (approximately) hundreds of meters to several kilometers of the cell located in the Tower, or you need measuring ability (3-30 m) (GPS).
Between nothing, sometimes only Wifi, which only works in cities.

If so, I have to choose between a standard location service and region monitoring.

For high accuracy, you will need a standard location service with desiredAccuracyBest

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