Didn’t Work
I was looking for my Pencil Pro. A recommendation online suggested trying a Bluetooth Finder. This one was rated well, but although it listed my Pencil Pro on the devices screen, when I clicked on it, the app said it was disconnected. I could see on the iOS Settings screen that it was connected. I noticed that the last update mentioned on the App Store was 4 years ago, so maybe this worked well once, but hasn’t been maintained. I downloaded another app that was highly rated and it works perfectly. I’m only out $4.99, but if you’re considering it, try one of the other Bluetooth finding apps.