Google Maps Updated to Fully Support iPhone Duo Displays
Google Maps has been updated with improved support for the iPhone Duo's displays, so that the app now fills the foldable iPhone's inner and outer screens rather than leaving unused space along the edge. The change comes with version 26.44.4, which is available on the App Store .
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Summary from MacRumors.
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MacRumors Google Maps Updated to Fully Support iPhone Duo Displays · Tim Hardwick