Acknowledgements

Software and artwork Optically is built with

Sparkle

Optically uses Sparkle to check for and install updates. Sparkle is distributed under the MIT licence, reproduced below in full as that licence requires.

Copyright (c) 2006-2013 Andy Matuschak.
Copyright (c) 2009-2013 Elgato Systems GmbH.
Copyright (c) 2011-2014 Kornel Lesinski.
Copyright (c) 2015-2017 Mayur Pawashe.
Copyright (c) 2014 C.W. Betts.
Copyright (c) 2014 Petroules Corporation.
Copyright (c) 2014 Big Nerd Ranch.
All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

EXTERNAL LICENSES

bspatch.c and bsdiff.c, from bsdiff 4.3 <http://www.daemonology.net/bsdiff/>:
Copyright (c) 2003-2005 Colin Percival.

sais.c and sais.h, from sais-lite (2010/08/07) <https://sites.google.com/site/yuta256/sais>:
Copyright (c) 2008-2010 Yuta Mori.

Artwork

The Optically mark and the application icon are original work by Flash Media Solutions, Inc., drawn in Adobe Illustrator. Every rendering of it — the app icon, the menu bar glyph, the mark at the top of this page — is generated from that single source file.

The photograph on the home page shows a Sonos Ray on a desk. Sonos hardware appears there in ordinary editorial context; no Sonos artwork, photography or documentation is used anywhere on this site or in the app.