3 stars: The app as is right now for an android tablet is great but still needs improvement. We need a direct straight line tool and ruler. Also the ability to dock the tools to either sides of the app. But above all please give us a better way of getting straight lines. That should have been added to the app from the beginning.
5 stars: This is exactly what I was looking for, to use as an unlimited sketch book, with rotatable paper. I use it for mechanical engineering sketches before moving to CAD. Only thing I'd ask for (and it might already have it - I'm getting older) is full screen in portrait so no status bar. This is an incredible app. Thanks developer.
4 stars: I got Concepts and the Essentials package as a Chromebook perk, but after going over some tutorials and fooling around with it myself I'm impressed with what it's able to pull off on a phone. Going between freehand sketching and more precise tools to clean up works even with my everyday cheap phone stylus. The only thing keeping this from being 5 stars is a lack of feature parity with the iOS version.
5 stars: This app works as advertised. I've found it useful more often than I expected. I'll try and come up with a more in-depth review when I feel more articulate. I'm here installing Concepts on a second device. A review for now... regardless of what aspect of Concepts brought you to read my review I'm sure this application will serve you well.
4 stars: This is a great app. Love to draw here, it...