So we been working on a new design for the app that will enable us to easily add more options for the canvas.
The reason we haven't added this feature yet is mainly due to limitations on mobile devices CPU/MEM. Making a canvas have more pixels means more CPU required to process each of those pixels thus making the app work slower. So as we improve the app and devices get faster we will add a larger canvas size support. Also, the app design has prevented us from adding this feature.
Thanks for the app. To add to this topic, it would be nice if the user could set an arbitrary size (up to an HD maximum).
Yes, this is what we where thinking. :)
Customer support service by UserEcho