Use Keynote with a custom canvas size. You can do literally anything in Keynote. https://vimeo.com/100377108 https://vimeo.com/100377108 To repost their comme

Use Keynote with a custom canvas size. You can do literally anything in Keynote. https://vimeo.com/100377108 https://vimeo.com/100377108 To repost their comment: “ In my work, there's constant discussion about which is the best and hottest new design tool to use. I’ve tried many of them, but in the end I still keep coming back to Keynote. It’s easy to learn and use, swapping assets is a breeze (using media placeholder), and most complex animations can be tested with Magic Move (the secret sauce to it all). Producing animations can span a range of fidelities; I can produce all the assets in Keynote, or I can copy out of Illustrator or drag and drop from Sketch (how seamless this works puts a smile on my face every time). As an interaction or visual designer, if you’re not using Keynote to test and bring your work to life, then I think you should start now! At least I hope this little experiment inspires you to try.”