MapQuest has become the top iPhone app in the US after refusing to rebrand Lake Ontario. The mapping service made this decision following an executive order by President Donald Trump to rename the lake "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 context of the executive order and the trade tensions surrounding it. MapQuest's decision was announced in a social media post, sparking its rise to the top of the app rankings.