Google is a trademark of Google Inc.
Android is a trademark of Google Inc.
Google Play is a trademark of Google Inc.
Chrome and Chrome OS are trademarks of Google Inc.
IOS is a trademark or registered trademark of Cisco in the U.S. and other countries.
Apple is a trademarks of Apple Inc., registered in the U.S. and other countries.
Mac OS is a trademarks of Apple Inc., registered in the U.S. and other countries. 
Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
Ubuntu is a registered trademark of Canonical Ltd.
Dropbox is a registered trademark of Dropbox, Inc.
Friction.io is not affiliated with or otherwise sponsored by Dropbox, Inc."
GITHUB®, the GITHUB® logo design, OCTOCAT® and the OCTOCAT® logo design are exclusive trademarks registered in the United States by GitHub, Inc.