Sketch has built-in drawing tools. Your drawings are automatically saved in your browser, so you can continue drawing even if you accidentally hit the close button.
Sketch supports not only PC, but also smartphone and tablet. You could draw carefully in your favourite place, or anywhere the moment you think of something to draw.
Sketch for iOS has camera integration, letting you easily share your paper drawings. You can even take a photo of your sketches and use the built-in draw tool to colour it.
Sketch supports #tags, so you can take part in news topics by drawing.
If you enable Twitter integration you can post to Twitter what you post to Sketch, so your art can reach more people.
Use Sketch for iOS to find out instantly when people react to your posts.
You can reply with drawing, or continue to drawing other user items using feature called as Redraw. There is a brand new communication through the drawing.
You can spread snaps by Resnapping them.
Let's heart when you find your favorite picture. You can look back at your hearted posts later.