Callie is free and open source software distributed under the MIT License. The licence text governs your rights to use, copy, modify, and redistribute it, and is included with the source code.
Callie is an application that runs on your computer. There is no hosted service, no account, and nothing to sign up for. These terms cover the software and this website only. Your use of Google Calendar, or any CalDAV server you connect, is governed by that provider's own terms.
You are responsible for the accounts you connect and for complying with the terms of those providers. Callie acts on your instructions, including creating, changing, and deleting events.
Callie 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 arising from the software or its use. Keep your own backups of anything you cannot afford to lose.
If these terms change, the updated version will be posted here with a new date.