In addition, you can check the HSK Chinese vocabulary studied that day through the review feature. Have you just started to learn Chinese? Don't you know how to read Chinese yet? Do not worry. HSK words will support Chinese voice, so you can learn how to read. You can study Chinese vocabulary by listening and watching, even if you do not have any prior knowledge of Chinese. It is important to study words every day! You can review the studied Chinese vocabulary by part, unit, or whole words. Words that you incorrect in the review feature are shown more often. The more you use the app, the more customized the vocabulary is for you. All words are installed with the app when you download the app. So you can study Chinese vocabulary anytime and anywhere. [Subscription] Ad removal -Remove ads from the app at a cup of coffee price each month ($2.99 /month). -Subscription is managed through your iTunes account. -Payment for the next use within 24 hours of the end of the subscription period. In other words, if you do not turn off the auto-renewal function at least 23 hours before the end of the subscription service, the subscription will be automatically renewed. -Please refer to https://dev-yakuza.posstree.com/privacy/en/ for the privacy policy and terms of use. Let's study Chinese HSK vocabulary via HSK words. - Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/