SG Tracker is a free lifestyle app developed by JLR Gear for Android devices running 4.4 or higher. This app aims to help users keep track of their personal belongings, such as keys, wallets, and bags, by using Bluetooth technology to connect to small tracking devices called CUBE key finders.

With SG Tracker, users can easily locate their lost or misplaced items by triggering an audible alarm on the CUBE key finder. The app also provides a map showing the last known location of the CUBE, making it easier to track misplaced items. The app can also be used to locate a misplaced phone by pressing the button on the CUBE key finder, which triggers an alarm on the phone, even if it is on silent mode.

Overall, SG Tracker is a useful app for those who frequently misplace their belongings. However, it is important to note that the app may not work on all Android devices and the level of support offered for troubleshooting scenarios may vary.