I’ll give it 2 stars because I think it’s an amazing idea and can’t wait for an app like this to exist. I was hoping they could include a description of the expected response to magnet application for these pacemakers/ICDs. I was so excited about the whole thing, that I started pulling up images online to see how good it would be at detecting the devices. It got the first few right, but then most of them were wrong, unfortunately. I love the idea, but would strongly advise not using it to substitute clinical judgement! Cheers!