This app has been created by Dave, W1HKJ and can be used to decode digital modes used on shortwave and other forms of radio including programmes such as VOA Radiogram and DigiDX. , CW (morse) and RTTY. The app was released under a GNU license (see http:// www.gnu. org/licenses/) and full source code can be found here - https://sourceforge. net/projects/fldigi/files/AndFlmsg/TIVAR/The original readme is below:Tivar is an Android app that provides read-only access to nearly all ofthe digital signals associated with fldigi. The main objective of this development is to provide a low power highly-portable, as in mobile or backpack, fldigi read-only solution. There is no facility to transmit anysignal. This app does not have a dedicated developer. If you are interested in maintaining Tivar please send an email email@example.comThank you. Dave, W1HKJ.