I haven’t used the Android app, but making customs sets is all I do with the iPhone version. You can embed images & audio files very easily and sync everything through Dropbox. You can edit the layout of cards in HTML or even in LaTeX. I am cheap & I was wary of spending the money to buy the app, but I would say it has been one of the best investments I’ve made in my life.
I haven’t used the Android app, but making customs sets is all I do with the iPhone version. You can embed images & audio files very easily and sync everything through Dropbox. You can edit the layout of cards in HTML or even in LaTeX. I am cheap & I was wary of spending the money to buy the app, but I would say it has been one of the best investments I’ve made in my life.