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.
This is the public group instrumental rationality diary for the week of August 6th. It's a place to record and chat about it if you have done, or are actively doing, things like:
Or anything else interesting which you want to share, so that other people can think about it, and perhaps be inspired to take action themselves. Try to include enough details so that everyone can use each other's experiences to learn about what tends to work out, and what doesn't tend to work out.
Thanks to everyone who contributes!
Last week's diary; archive of prior diaries.
(Sorry for being late this week -- I'm on vacation and got distracted :-)