Chinese classifiers or 量词 (liàng cí) are characters that go between a number (or a demonstrative or interrogative pronoun) and a noun in Chinese. The classifiers shown in the App apply to Mandarin Chinese.
The List section of the App shows an example list of some of the more commonly used classifiers and their general usage.
The Examples section of the App gives some examples of these classifiers in phrases and sentences.
The Quiz section allows you to test your knowledge regarding the appropriate use of classifiers.