NDCalc2

NDCalc2 stands out because the 2 is part of the app’s actual name, and the app sits in Photo & Video rather than in a generic utility bucket. By our assessment, that makes it feel like a focused tool for image-related work instead of a broad do-everything package. The limitation is that an app with a name like this usually asks the user to already know what they want from it, so it is not the easiest place for someone looking for a simple one-tap answer. In practice, Photo & Video tools like this are judged by whether they stay clear about a narrow job, and NDCalc2 sounds like one of those. It is not trying to be a full editing suite.