@EwanCroft There are a couple options, #Kivy with python-for-android, and #pybee with briefcase, i'm biased for kivy, as i've been a contributor for it for a long time, but depending on your objectives, the different tradeoffs might make you prefer the latter. Kivy being opengl based, it gives you a lot of freedom on how your app should look, but it will look the same on every platform, while pybee uses native widgets on every platform, which gives less freedom but integrate better with the OS.