What is a good flash card app?

Question

I'd like a flash-card like app to be able to remember stuff on a daily basis (but probably *not* foreign languages)

Ideally:
- there's an iPhone app
- there's a desktop app
- both are synced
- ability to easily add images/screenshots

Let me know if you know something that fits these specs!

Kesava Mandiga · Accepted Answer

Anki is a comprehensive flash cards solution that works on PC, Mac, iOS, Android and has a web app too.  It supports text, images, audio and video, so all your needs are covered. Give it a try.

Ivan Mir · Answer

The most flexible flashcard and quiz service I've used. It's very easy to import your data there.

Steve Farrugia · Answer

I've not used it myself, but I've heard great things. It's on iOS and Web.

Simon Bromberg · Answer

Lots of existing courses to choose from, quick easy to use interface.

David Gradford · Answer

Creat beautiful animated card by online tool from Website or mobile( Android, IOS) sync with your Libable Account

Josh Littlewood · Answer

Oh flip is a great new app that I am using every day to get through my exam revision!