Full Screen Caller ID is an Android app developed by AndUtil. Others apps created by AndUtil are: Caller Location, Caller Name Ringtone, Photo Video Lock.

Full Screen Caller ID first became available on 31 May 2013. It is estimated that Full Screen Caller ID has been downloaded between 1000000 and 5000000 times from the Play Store.

Full Screen Caller ID 1.4 requires the following permissions:

Allows applications to access information about networks.

Allows applications to connect to paired bluetooth devices.

Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call.

Allows an application to call any phone number, including emergency numbers, without going through the Dialer user interface for the user to confirm the call being placed.

Allows applications to disable the keyguard if it is not secure.

Allows applications to open network sockets.

Allows an application to know what content is playing and control its playback.

Allows an application to modify global audio settings.

Allows modification of the telephony state - power on, mmi, etc. Does not include placing calls.

Allows an application to see the number being dialed during an outgoing call with the option to redirect the call to a different number or abort the call altogether.

Allows an application to read the user's call log.

Allows an application to read the user's contacts data.

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 create windows using the type TYPE_SYSTEM_ALERT, shown on top of all other apps. Very few apps should use this permission; these windows are intended for system-level interaction with the user.

Allows access to the vibrator.

Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.

Allows an application to write (but not read) the user's call log data.

Allows an application to write the user's contacts data.

Allows an application to write to external storage.