This started as a personal project. I was constantly misplacing my AirPods, smartwatch, and other Bluetooth devices around the house. I'd spend way too much time walking around trying to figure out where they were. I tried a few Bluetooth finder apps, but none worked quite the way I wanted, so I decided to build my own. The app scans for nearby Bluetooth devices and uses signal strength to help determine whether you're getting closer to or farther from a device. Over time I kept adding fea...