Rememba is a free vocabulary training app available on the iPhone platform. Developed by Anton Lovchikov, this app is designed to help users improve their language skills through the use of the Spaced Repetition principle.

With Rememba, you can customize your training intervals to suit your learning preferences. Whether you want to learn a foreign language or enhance your proficiency in your mother tongue, this app has got you covered. You have the flexibility to add cards with words, expressions, or even whole sentences.

One of the standout features of Rememba is its extensive language support. With a choice of 256 languages, you can learn just about any language you desire. Additionally, if you come across a new expression while reading a book or catch a peculiar slang while watching a sitcom, you can easily add it to your cards and train it.

Rememba focuses on building your vocabulary quickly and efficiently. While it doesn't teach grammar or language rules, it provides a powerful tool for expanding your word bank.

The app allows you to add up to 100 cards for free and learn any language without time limitations. If you find that Rememba is the perfect vocabulary training app for you, you have the option to expand the card limit to further enhance your learning experience.