It doesn’t respect screen safe zones so e.g. the chart controls render under the island on iPhone 14s. The “Done” button for closing the settings pop-up panel actually opens another pop-up showing the data chart, and so it recurses infinitely (though this is a workaround for the safe area issue since the pop-up doesn’t extend under the island).There’s plus and minus controls with no explanation of what they do (turns out it’s to control how many intervals to show, whether that’s days, months etc as selected by the segmented control).There’s also a bunch of settings which aren’t clear as to their function.But nonetheless it does do what it says on the tin, and I found it super convenient that this app exists.