MemoStack
Anki
Brainscape
Mochi
SmartCards+
Harken
Quizlet
Yak Tack
Vim Python IDE
Why it's better than physical flashcard: MemoStack uses "Spaced Repetition" method to help you learn effectively. With Spaced Repetition, you will review each items just before you forget them. This is scientifically proved to be an effective way to remember things.
Here are some features: โณ Review test with Spaced Repetition ๐ Graph to check daily progress ๐ Dictionary access (currently support English and Spanish) ๐ป Works with PC and Mobile
MemoStack
Vim Python IDENo features have been listed yet.
Anki - Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
Brainscape - Find, create, and study SMART FLASHCARDS on any device. DOUBLE your learning speed using the most effective study system on the planet. Keep all your content in sync across Brainscape's website and your Android devices.
Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.
SmartCards+ - Spaced Repetition Software for iOS. Modern, powerful and easy to use.
Harken - Flashcard app using smart repetition to improve your memory
Quizlet - Quizlet allows you to review and create flashcards for a variety of subjects, such as math and reading.