Bluetooth Transfer is a free Android app developed by Yeeun Apps that allows users to transfer apps and contacts between two devices using Bluetooth. To use the app, both devices must be paired via Bluetooth. Once paired, users can transfer apps installed on their device to another device. Additionally, users can transfer contact data between devices.

The app requires several permissions to function properly, including BLUETOOTH and BLUETOOTH_ADMIN for transferring data using Bluetooth, READ/WRITE CONTACTS for displaying and reading/writing contact information, and READ/WRITE EXTERNAL_STORAGE for reading/writing data to external storage devices.

Overall, Bluetooth Transfer is a useful app for those who frequently need to share apps and contacts between devices, and its simple interface makes it easy to use.