This android app was mentioned in
with an average of
As far as I remember however, the Sony app is raster.
There is an app called Infinite Design that is vector based. The developer is always pushing out updates and if vectors aren't your thing he has another app called Infinite Painter.
Both are free to try for a month if I remember correctly and have 25% off the purchase price. I think they are the closest I've gotten to Illustrator and Photoshop. Even the actual Adobe offerings on the Play Store are crippled versions.
If anyone has any better suggestions I'd love to hear too.
My wife uses hers heavily for vector art drawing in Infinite Design. She doesn't use the handwriting, but uses the app's finger/palm rejection. She's had to add a fingerless glove to her kit to supliment the rejection to allow her to keep palm on screen while drawing with the pen, as well as a sleeve to the pen to fatten it up. Otherwise its excellent value for money, great on battery life, responsive and consistent. Apps crash rarely and it just got the Nougat update.
Photos of pen mod and glove: [link]
Infinite Design is my favorite drawing app
I was using Adobe Draw, which is cool, but recently tried out Infinite Design, which is also a vector drawing app that actually has a TONNE more features than Adobe Draw. Very cool stuff.