Key Finder is a free lifestyle application developed by DENSO CORPORATION for Android devices. This app allows you to connect your smartphone with the Key Finder device and receive alerts when your phone or the device is out of range. The Key Finder app is designed to help you locate your lost items quickly and easily.

With the Key Finder app, you can use Bluetooth to connect your smartphone with the Key Finder device. Once connected, you can use the app to locate your device or your phone. You can also set the distance range and receive notifications when your phone or the Key Finder device is out of range.

Please note that the Key Finder app only works when it is connected to the Key Finder device. It cannot operate on its own. Additionally, this product does not guarantee the prevention of losing your keys or other items attached to your phone or Key Finder device.

Overall, Key Finder is a useful and easy-to-use app for people who often misplace their keys or other small items. If you have a compatible device, it's definitely worth giving it a try.