To use Tap as a mouse on your iOS device, make sure your iPad/iPhone has iOS 13 or later versions installed.
To enable the mouse on your iOS device:
- Open Settings, then choose Accessibility
- Next tap Touch then AssistiveTouch and toggle it on
- Below tap Pointing Devices
- Choose Bluetooth Devices…
- Set your Tap Bluetooth to discoverable and select it when it appears on your iPad
- Start mousing!