My thoughts on the topic: 1. Don't ask the end-user for permission to use their location data until the last possible moment. When someone will benefit by shar

My thoughts on the topic: 1. Don't ask the end-user for permission to use their location data until the last possible moment. When someone will benefit by sharing their data, they will be more likely to do so. 2. For iOS, ask twice. First, use your own dialog box to ask if you can use their location data. If they say no, persist that and don't ask them again unless they perform a similar location-requiring action. If they say yes, then you can trigger the iOS location permission request (this way, they are much less likely to say no to the official request).