Testing your app for accessibility is an essential part of making an accessible app, as with any part of the software you build, if you don’t test it, how can you be sure it works? Evinced’s tool can currently detect missing traits, missing accessibility labels, invalid accessibility labels, insufficient colour contrast for text against the background, small hit targets, and interactive elements that are not accessible to assistive technologies. This is Evinced’s initial release, but in my testing their tool is already comparable with Apple’s own Accessibility Inspector, with Accessibility Inspector beating Evinced only on detecting Dynamic Type support.