Clef is an Android app developed by Clef, Inc. (101 Broadway Ste 311 Oakland, CA 94607).

Clef first became available on 23 Jan 2013. It is estimated that Clef has been downloaded between 100000 and 500000 times from the Play Store.

Clef 2.5.7 requires the following permissions:

Allows applications to access information about networks.

Required to be able to access the camera device.

Allows applications to open network sockets.

Allows an application to read from external storage.

Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.

Allows an app to use fingerprint hardware.

Allows an application to write to external storage.