What's the best Android app for tracking lost keys and bags that actually works reliably?

Samsung Galaxy SmartTag is designed specifically for tracking personal items like keys, bags, and wallets. The app connects to small physical tags that can be attached to valuable items, providing location tracking through Bluetooth connectivity. When an item goes missing, the app displays its last known location on a map and can trigger a ringtone on the tag to help with nearby searching. For items that are further away, the app utilizes Samsung's network of compatible devices to anonymously detect and report locations. However, some users report inconsistent performance in areas with fewer Samsung device users, as the community finding feature depends on nearby compatible devices being present and active. The app also includes augmented reality features to help visually locate items within close range, and users can set up safe zones to receive notifications when tagged items leave designated areas. Battery life for the physical tags typically lasts several months before replacement is needed.