If your Apple Pencil is not working properly in GoodNotes, please follow the checklist below to solve the problem.
Note that the Apple Pencil only works on Apple's iPad Pro models and not on iPhone or other iPad models.
Step 1 - Make sure the Pencil is fully charged and paired.
Your Apple Pencil might not have enough battery which can cause occasional lags when writing. You can pair/charge your Apple Pencil by plugging it into your iPad's lightning connector for 15 seconds. Check the Widget View of your device to see how much battery is left.
Step 2 - Check if the same problem occurs in other apps.
To make sure it is not a problem with your hardware, please try writing in another app like Apple Notes. If you experience similar issues, it is likely that there is a problem with your hardware. We suggest contacting Apple Support about it for a quick solution.
Step 3 - Restart your device and pair your Apple Pencil again.
Press and hold the iPad's lock button and home button until the Apple logo appears on the screen. Wait until your iPad has restarted and then pair your Apple Pencil again by plugging it into your iPad's lightning connector.
Step 4 - Turn off Zoom accessibility feature
On iOS 11, if the zoom accessibility feature is turned on, it may affect the Apple Pencil's writing. This may lead to strokes randomly disappearing or turning into small dots Please turn it off in the iOS Settings app > General > Accessibility > Zoom.