Anki

Available on many platforms and has cloud sync as well as many useful features for spaced practice etc.

LaTeX features do not work reliably in AnkiDroid (testing version 2.0.1)

LaTeX features require quite a bit of set up on Windows:

MiKTeX must be installed.

Test some LaTeX in Anki, for example make a card as follows:
Front: [$$]\epsilon_{klm}\epsilon_{krs}[/$$]
Back: [$$]\delta_{lr}\delta_{ms}-\delta_{ls}\delta_{mr}[/$$]

(It is worth noting that you can put [$$][/$$] in card formatting instead and combine fields into longer LaTeX equations.)

It will probably not work; this is because certain MiKTeX packages need to be installed and Anki will not show the install prompt.

I have seen multiple solutions online but this one worked for me and is probably most reliable:

Instead we will request the required packages from cmd.exe
Make a LeTeX document in LyX or similar and output a .dvi
Open a command prompt to the folder with the .dvi file and run: dvipng "name.dvi"
The required packages will now be installed in MiKTeX.

Test again in Anki, it should work immediately.
Note however that Anki is buggy software, I have had cards refuse to render while exact copies worked just fine.

Some of the LaTeX may also work when synced to AnkiDroid, in my case almost all of my formulas do not and I have so far been unable to find the cause.

(I am quite certain that .png files rendered by dvipng for Anki on Windows are NOT synced to ankiweb.net, rather the LaTeX code is synced. It is rendered separately by every platform.)

I do not recommend this software, use it only if you have to.
Unfortunately it does not have enough competition.

[Edited by Bitchomp, April 22]
Mnemosyne is much better in my opinion.

Anki is a great language-learning tool.

the greatest flashcards program out there <3
saved my life

Great for learning languages, topography, lists, etc

• has Classic User Interface and Not User Friendly,
• Require installation of apps
• Shared Deck library ( https://ankiweb.net/about ) are cluttered and need to be manually downloaded

Hi, I have a jailbroken iPhone with AnkiMini downloaded from Cydia. Installation did not give any problems, but when I start AnkiMini, it crashes all the time, immediately. So, I could not use the app at all. Any idea how to make it work? Thanks.

Anki is a stunning piece of software. While it is easy to get started building your own decks with very good video lessons, you can also access a giant database of finished decks, especially for languages, free of charge.

What I love most about Anki is the sync function. You can build your decks on a computer and repeat the cards on the go with about every smartphone there is. Its way of organizing your repetition so you can focus better on learning new stuff is very supportive.

The software is rock-solid code - I never experienced any problems. And have I mentioned it is free of charge? I'm a donator!

I have Anki 2.0.36 and it is awesome. The interface took less than five minutes to learn and the minimalist format is useful without being distracting. I got Anki yesterday after I failed a Biology test. I imputed the study material and began the process. I am already seeing results this morning. Most of the facts I could not remember on the test I can now recite with ease, and that is after only two study sessions. I can easily recommend this program to anyone who has a hard time memorizing like me.

That pretty much sums it up