The Adonit Pixel will work and HAS PALM REJECTION WITH APPS THAT SUPPORT PALM REJECTION!
I have used this stylus for nearly 3 years now on my own iPad.
To get the latest firmware for the Pixel stylus from Adonit, you must purchase the Pixel from the Adonit Website.
https://www.adonit.net/jot/pixel/
The Adonit Pixel supports palm rejection with compatible apps ONLY!
Here’s my “up to date”, comprehensive, but still incomplete, list of Adonit Pixel compatible apps for the iPad/iPad Pro.
Most apps listed support pressure sensing and palm rejection.
Compatible Adonit Pixel apps for drawing
Animation Desk
Amaziograph
Adobe Photoshop Sketch ( palm rejection ONLY, No pressure, no sensing/line variations )
ArtRage
Art Studio Pro ( fully supports the Adonit Pixel and is just as great as Procreate on the iPad )
AutoDesk SketchBook
Colored Pencil
Comic Draw
Concepts
Interactive SketchBook
Inkist
Medibang Paint
ProCreate (Adonit is supported as an unsupported stylus, but all stylus features still work, palm rejection IS improved using special, non-electrical conducting, lycra-based material drawing glove )
Tayasui Sketches/Sketches Pro ( the new, free Tayasui Sketches School version works with this stylus, but without any palm rejection or pressure sensing, so you need to use a special, non-electrical conducting drawing glove with the Sketches School version to lay your hand/palm down on the iPad’s screen )
ZenBrush/Zen Brush 2
Compatible Adonit Pixel apps for Notes and Notes with drawing types of apps.
GoodNotes 4 or 5
Notability ( palm rejection noticeably improved using special, non-electrical conducting, lycra-based material drawing glove )
Note Shelf 2
Notes Plus ( latest version has, temporarily, removed all third party, smart Bluetooth stylus support )
Notes Writer ( palm rejection better 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 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, unless you use special, non-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 this found on Amazon.
https://www.amazon.com/Professional-Anti-fouling-Drawing-Tablet-Graphic-Right-Ha nd-Left-Hand/dp/B017R8M2JY/ref=sr_1https://www.amazon.com/Professional-Anti-fouling-Drawing-Tablet-Graphic-Right-Ha
Many more makers of these types of gloves on Amazon.
If interested, to make sure you get the latest installed stylus firmware, you must order the Adonit Pixel stylus directly from the Adonit website.
Good Luck to You!