Here’s my “up to date”, comprehensive, but still incomplete, list of Adonit Note+ compatible apps for the base line iPad models, like the 6th, 7th and 8th gen iPad models.
MOST apps listed support palm rejection, pressure sensitivity and tilt, unless otherwise noted
Compatible Adonit Note+ apps for drawing
Animation Desk
Amaziograph ( NO tilt support )
Adobe Photoshop Sketch ( A great app with a lot of free brushes without having to pay monthly to subscribe ) (palm rejection and Tilt support ONLY )
Adobe Draw ( palm rejection ONLY )
Art Studio Pro ( a direct Procreate competitor, just as good as Procreate )
Colored Pencil
Concepts
Forge ( drawing/sketching/concept/ideation app )
Infinite Painter
Interactive SketchBook
Medibang Paint
Procreate ( palm rejection, tilt support ONLY )
Tayasui Sketches/Sketches Pro ( palm rejection, Tilt support ONLY )
SketchClub
Vectornator ( palm rejection ONLY )
Zen Brush 2
Compatible Adonit Notes+ apps for Notes and Notes with drawing types of apps.
GoodNotes 5 ( palm rejection ONLY )
Note Shelf 2
Notes Plus ( palm rejection ONLY )
Notes Writer ( palm rejection improved using special, non-electrical conducting, lycra-based material drawing glove )
QuickNotes X Pro ( palm rejection ONLY. No pressure sensing for light/dark or thin/thick lines )
uPad
Zoom Notes
PDF Pen
This is pretty much it for Adonit Note+ compatible note-taking apps.
This stylus works with other non-compatible apps, too, but without any palm rejection and/or pressure features.
You can use this stylus with other apps but will not be able to lay your palm on the screen, while you write or draw, unless you use special, non-body electrical conducting, lycra-based material drawing glove that works by isolating your hand/palm and allow you to lay your hand/palm on the screen as you draw in these non-compatible Adonit stylus apps.
Something like these found on Amazon.
https://www.amazon.com/AKX-Rejection-Drawing-Graphic-Sketching/dp/B08R6PWKC9/ref=sr_1_33_sspa?dchild=1&keywords=tablet+drawing+gloves&qid=1611535160&sr=8-33-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExMFg5WFBZWFpCS1kmZW5jcnlwdGVkSWQ9QTA5OTA2MzMxRUVYUURUMlAwVU4wJmVuY3J5cHRlZEFkSWQ9QTAxNDY1NjMxVjg1NE45TVRXSUQ3JndpZGdldE5hbWU9c3BfYXRmX25leHQmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl
https://www.amazon.com/Timebetter-Rejection-Drawing-Sketching-Suitable/dp/B08DKGHYMS/ref=sr_1_21?dchild=1&keywords=drawing+gloves&qid=1611533128&sr=8-21
Many more makers of these types of gloves found on Amazon and in different hand sizes, as well!
Best of Luck to You!