I was skeptical but it’s pretty great It’s much better than the other 3 highly rated ones I’ve tried so it’s likely as good it gets for a phone app. The problem with each EMF app is hypersensitivity towards totally wrong things and so far the only clear weakness this one has is springs. As in mattress springs, chair springs, etc. Pretty weird but if it’s the only weakness then it still beats the competition. I’m just glad my mattress isn’t haunted, just has a ton of springs hehe. I was gonna spend a lot on some sus device from Amazon but this looks good enough to save me some moolah. Just hit the stop button every min or two cause the EMF value likes to creep up and stay with the bigger numbers. Oh and I like the lowest sensitivity setting but all of them work great. Fun app overall, enjoy!