I use location a lot in my app, and I've found that if the user moves far away (i.e. on vacation to a different country), the app shows a permission popup asking the user if they really want to keep location permission as always soon after. I've also found that providing some message from the app (i.e. in notifications) helps a lot more than what I can put on the permission popup to remind the user what this permission is used for, and helps my users make more informed decisions when they are asked about the location permission. Is there any best practices or heuristics I can use to decide when to show this notification? I just have some pretty simple logic in my app today, but would love to be able to provide a better experience.