The previous deal was HSK 5, now HSK 6 is available for free.
The Hero Method allows you to quickly master Chinese characters by enforcing a recall and recognition process, essential for long-term memory.
HSK 6 Hero covers 2500 words in the Chinese language, which are based on the Chinese level 6 proficiency exam (HSK 6). Audio for all words is available at the tap of a button.
This app supports both simplified (mainland China) and traditional (Hong Kong, Taiwan) Chinese characters.
I'm still learning Grapefruit