Procreate
I love the UI and gestures of Procreate, and the new QuickShape feature really helps when it comes to precise product sketching.
I’ve even worked with Procreate to promote their new 4.2 release and sketched this Canon M50.
Sketchbook Pro
I love the accuracy of the ellipse guide and ruler, allowing for precision sketching as well as loose thumbnails. The ellipse guide remembers the angle it was last used at, so it’s easy to set up and use whenever it’s needed.