nDX cards are your very own virtual flashcards! Swipe ⬆️ or ⬇️ to flip the card.
Made with ❤️ by Brian Stone
[noun] an alphabetical list, or a sign or measure of something. Swipe ⬅️ if you need more practice, ➡️ if you got it!
Typical cards have a front and back, but these aren't you average index cards...