Affinity products are designed to be used in conjunction with multitouch devices (Magic Mouse, Trackpad), including those with Force Touch pressure-sensitive capability (Magic Trackpad 2 and later MacBook computers).
For Point&Click and Scroll&Zoom operations, the following default gestures are available when using Trackpad devices (gestures can be changed in device preferences):
Makes a selection.
Displays context menu (Force Touch only).
Displays context menu.
Pans around document view.
Pinch/spread with two fingers to zoom in/out.
Switches between current zoom and 100% zoom by double tap.
Zooms in and out. Tracks finger movement.
Rotates canvas about current cursor position.