We also collect some information about these devices like <strong>the operating system</strong>,<strong>hardware and software versions</strong>,<strong>screen resolution</strong>,<strong>the name of your mobile operator or ISP (Internet Service Provider)</strong>, <strong>language</strong>, <strong>time zone</strong>,<strong>approximate location</strong>, and <strong>IP address</strong>.<strong>Calendar Metadata</strong>When you link an external calendar provider like Google Calendar, Microsoft Exchange, Office 365, iCloud or other CalDAV calendars, we collect the <strong>unique identifier</strong> and the <strong>email address or username</strong> of these accounts.