Myke Hurley:

To really see what the Pencil is capable of, the best place to try it is in iOS’ built-in Notes app. The drawing mode that you can activate only features a modest selection of tools and options, but is by far the most responsive experience. Using the Apple Pencil in Notes is the closest I have ever come to getting a true handwriting experience from a digital device.

To say there is no lag would be incorrect, but it is close enough to feel that it works. When you move the Pencil across the screen, most lines will travel ever so slightly behind it. But compared to previous experiences of using a stylus on a iPad, the difference is like night and day.

My Pencil delivery date can’t come soon enough—4 weeks to go.

I also tried out a selection of drawing apps, just to see what the Pencil was capable of. I spent most of my time in Paper by FiftyThree, Adobe Photoshop Sketch, Procreate, Tayasui Sketches, and Zen Brush 2. The responsiveness of the Pencil really differed in each of these apps, with Paper by FiftyThree being the worst.

Am I the only who is curious which one was the best?

Update

And Myke responded to my question while recording Upgrade in their IRC channel:

[18:14] <imyke> Morid1n: the notes app is good. I also like Notability and GoodNotes.

Seems that Notes is the way to go.