A father’s new navigation app, Argo, has soared to the top of the US App Store charts after his daughter helped it go viral on TikTok. Earlier this week, Argo’s official TikTok account shared a video of its owner, Jeff Foulk, at the Chicago boat show. In the clip, Jeff’s daughter Megan asked viewers to help her father’s navigation app for boaters go viral. “Help blow up dads boating app,” she wrote in the text over the video.