Fantastical for iOS includes the Fantastical Apple Watch app.
After installing Fantastical on your iPhone, the Fantastical app will be listed in Apple’s Watch app. Here, you can choose to install Fantastical on your Apple Watch by enabling the ‘Show App on Apple Watch’ switch.
Tap the app icon on your watch to launch Fantastical, and during the initial set-up you may be prompted to open Fantastical on your iPhone so that your data can be synced to the watch accurately. After this initial set-up you'll be able to use Fantastical on your watch without being connected to your phone.
The Up Next view gives you a quick overview of your next appointment and current weather conditions.
Swipe right from Up Next to see Events, which displays any appointments scheduled over the next few days alongside the expected weather forecast.
Swipe right once more to see the Tasks view, which collects all your tasks in one convenient place and allows you to complete them with a tap.
Force Touch the screen and tap "Add Event" or "Add Task". Next, use Scribble or dictate your item's details to Siri, and then confirm your new event or task when prompted.
Fantastical for Apple Watch has various settings that can be configured. Open Fantastical on the iPhone and tap Settings > Apple Watch to see everything you can configure.
Up Next: Toggle the Up Next view on or off.
Events: Toggle the Events view on or off.
Tasks: Toggle the Tasks view on or off.
Weather: Choose if the weather forecast is visible or not.
Calendar Set: Select which calendar set you want to use on the watch app.
Show Event Location Map: Show or hide the map of an event's location to maximise screen space.
Show: Choose whether to see many days, today only or today and tomorrow.
Show End Times: Enable this to see both the start and end times of events.
Organize By List: Organizes tasks by the lists configured in the Reminders app.
Prioritize Overdue Tasks: Overdue tasks will take priority in complications and Up Next.
Tapping Opens: Select the action to be taken when tapping one of Fantastical's complications.
Small Complications: Choose what information small complications will display.
Large Complications: Choose what information large complications will display.
Show All-Day Events: Show or hide all-day events on the complications.
Show Relative Dates: Display how long until an event begins rather than when it begins.