Your bookings, next to the rest of your week.
A booking is only useful if you remember it. Co-oto speaks the .ics standard, the format every calendar understands, and offers two ways to use it.
One booking, added once. Good for the trip you must not forget.
A subscription that keeps itself up to date, booking after booking.
What happens next depends on where you are:
A reminder comes with it: the event carries an alert one hour before the booking starts, so the vehicle is never a surprise.
The feed is a private address that your calendar app re-reads on its own. Book in Co-oto, and the booking appears in your calendar without you lifting a finger.
Google Calendar: Other calendars, then "From URL"
Apple Calendar: File, then "New calendar subscription"
Outlook: Add a calendar, then "Subscribe from the web"
Keep the address to yourself: anyone holding it can read the calendar. If it ever leaks, regenerate it: the old address stops working immediately, and any app still using it stops syncing.
Refresh rate: calendar apps decide how often they re-read a subscription, and most of them do it every few hours rather than instantly. A brand new booking may take a moment to show up.
Calendar export and the calendar feed come with a paid subscription, and during the free trial period. See the plans.