Got my pippyg mic working with my iphone. Well, no bats yet, but there will be. It arrived almost instantly from here: https://www.wildlifeservices.uk/product-page/apodemus-pippyg You have to have the right connector (which I happened to have), but it looks like for some mysterious vaping reason, there are loads for sale cheap - https://www.ebay.co.uk/sch/i.html?_nkw=lightning+otg+adapter The bat app is https://apps.apple.com/gb/app/bat-detector/id6504186190