FlashTabs - Flashcards in your new tab screen
Forvo - Forvo: the largest word pronunciation dictionary in the world, now with translations.
Flashcards + AR - Learn anywhere with augmented reality flashcards ✨
Howjsay - Pronounce words correctly with the world’s largest English pronouncing dictionary.
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.
Shtooka - The Shtooka Project is a multilingual database of audio recordings of words and sentences.