Hack Chinese is a spaced-repetition web application that, with diligent self study, can help you recognize over 500 words per month. They have pre-made vocabulary lists, a build-in dictionary to avoid having to create your own flashcards, and pronunciation from native speakers.
The website can help you prepare for HSK and IGCSE exams by assessing your current knowledge and filling in the gaps. You also have the option to invite your teacher to use the app with you for free in order to collaborate on your learning.
Before using the website, you will need to know pinyin pronunciation.
Although Hack Chinese has an attractive user interface, Pleco, with its SRS flashcard add-on, is a far more comprehensive, cheaper option.
The current rating is our best estimate. We haven’t had the opportunity yet to more thoroughly evaluate this resource, as we do for our full reviews.