The Ugly Duckling is an Android app developed by Q.L.L. Inc. Ltd. (台灣台北市信義路四段415號9樓之3). Others apps created by Q.L.L. Inc. Ltd. are: The Gingerbread Man.

The Ugly Duckling first became available on 18 Jun 2012. It is estimated that The Ugly Duckling has been downloaded between 100000 and 500000 times from the Play Store.

The Ugly Duckling 4.0.18 requires the following permissions:

Allows an app to access approximate location. Alternatively, you might want ACCESS_FINE_LOCATION.

Allows applications to access information about networks.

Allows applications to access information about Wi-Fi networks.

Allows applications to open network sockets.

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.