Climb is an app for English language learners to increase their vocabulary through fun interactive games, memes, and challenges. The user opens the app and begins by taking a test where they click on all the vocabulary words in English that they feel confident about. At the end of the test, they are assigned a score and a personalized word list for study. 

Users can also search for words in specific categories, including slang, compliments, describing things, food, sports, etc. When the user clicks on a specific word they want to learn, they see a GIF that matches the word, a pronunciation, a definition, and a word origin. Users can also click on a button that will translate the word into their native language. By clicking on the plus button at the bottom of the entry, the user can also add the vocabulary word to their own personal vocabulary list. 

Climb also features games that are specifically designed for the language learner’s current level. In order to play the games, the user needs to earn magic potions or MP in order to “purchase” them. MP is earned by adding vocabulary words to personalized lists and taking vocabulary quizzes.

Quizzes ask the user to click on definitions to match words, type words in with their correct spelling, match GIFs to definitions, and even speak into the microphone to check pronunciation. When the quizzes are complete and enough MP is earned, users can play games such as GIF Quest where they choose the GIF that represents the target word the best. 

Climb has a seven day free trial after which a subscription is necessary. Climb is rated for children 4 and up but parents should be advised that some words, including slang, may be inappropriate for children. Parents should use their judgement and knowledge of their individual child before downloading Climb.