MapQuest has become the top free iPhone app in the US. This surge in popularity comes after the service refused to change the name of a certain lake. The lake in question was targeted by a decree from President Donald Trump, who wanted it renamed "lago América".

MapQuest's stance on the issue seems to have resonated with users, propelling the app to the top spot in the App Store. It also ranked eighth among free apps on Google Play.

Further details on this story are available from the source, including the circumstances surrounding MapQuest's decision and its impact on the app's popularity.