I like to use DrawExpress when I'm on the go, have an idea, and a phone or tablet. https://play.google.com/store/apps/details?id=com.drawexpress.full https://p

I like to use DrawExpress when I'm on the go, have an idea, and a phone or tablet. https://play.google.com/store/apps/details?id=com.drawexpress.full https://play.google.com/store/apps/details?id=com.drawexpres... Gestures and drawing shapes are where the big speed improvements come from. Typing is eh since it's a touch screen but a keyboard fixes that.