MapQuest has become the top iPhone app in the US after refusing to rename Lake Ontario. The mapping service made this decision following an executive order by President Donald Trump to rebrand the lake as Lake America.

As a result, MapQuest saw a surge in popularity, overtaking other popular apps like ChatGPT and ESPN Fantasy Sports on Apple's App Store. It also ranked eighth for free apps on Google Play.

Further details about this development are available, including the circumstances surrounding the executive order and MapQuest's response to it.