This is a fork of the free software & open-source app Nuntilus, Copyright (c) 2014-present HolyLobster, under the GNU GPL v2 license. This fork (as in custom version) is under the same license.For the moment this fork it has only minimal changes,mosty administrative changes needed to enable further customization and functionality.
Link to original repo with license:
https://github.com/holylobster/nuntius-android/blob/master/COPYING
Original repository source and more practical and interesting info and details: