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iOS 11 introduced the ability to allow apps to only access your location while you're actively using the app. Using this method should be a good mitigation.

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Unfortunately apps don’t care. Waze lingers up to 40 minute after traveling in the background and that’s with supposed in app only mode.

From Apple: "When Location Services is active, a black or white arrow icon appears in the status bar."

If Waze is using it for up to 40 minutes after traveling, you need to decide if you want to know where the cops are or if you want Google to know where you are.

The colored location bar on top stays active too.

I always force quit Waze at the end of the trip so that it (1) stops tracking me and (2) I don't waste my phone's battery life on tracking me

Unless I'm mistaken they don't have access to your location while running in the background. Running != access to location.

GPS mapping apps can enter into an “active backgrounder” mode, where the app is active in the background.

It is one of the few app categories that can do that; the other is VOIP.

But doesn't the status bar remain green while an app is doing that?

Mine is clearly set to only "While Using" on iOS 11.

I don't see why it's surprising that MoviePass tracks your location when you open the app to look up movies or check in. Would that not be obvious?

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