After20Hours

This is the most efficient Chinese vocabulary memorization app combined with memory cycle theory.

The usage is simple, but the app is smart.

Simply check the words you know or have memorized, and skip the ones you haven't.

You can decide whether to study using Simplified Chinese, Pinyin, or Korean by pressing the key and eye icons on the right side of the field.

You can also hide everything and study by listening only to the audio.

Words that are not currently marked for memorization will reappear after 20 hours.

When they reappear, the word you memorized most recently will appear first.

It is designed to appear in accordance with memory cycle theory.

The developer created this on a computer for self-study and has now released it as an app.

Since this app is being released for free without any conditions, please feel free to use it to your heart's content.

If you find any errors or areas that need improvement, please let us know via email, and we will incorporate them sequentially.

Thank you.