What is 千字文 (Cheonjamun / Senjimon)?
The Thousand Character Classic is a 6th-century Chinese poem written by the Liang-dynasty scholar Zhou Xingsi. It uses exactly 1,000 distinct Chinese characters, arranged into 250 four-character stanzas. For more than 1,500 years it has been a foundational primer for learning classical Chinese characters in Korea and Japan.
What languages does the app support?
The interface is available in Korean, English, and Japanese. The bundled study content currently includes the full Korean readings and meanings for all 250 stanzas. English and Japanese readings will appear progressively in future updates; until then, the original character meaning falls back to the Korean translation.
Do I need to create an account?
No. Chunja does not have user accounts and does not require a login. Your progress is stored only on your device.
Does the app need an internet connection?
No. The 1,000 characters and 250 stanzas are bundled inside the app. The only network call the app makes is to fetch a small "More from this developer" card in Settings, and even that is optional — nothing about your account or learning progress is sent.
How does the Practice tab work?
The app introduces stanzas in their original sequence (天地玄黃, 宇宙洪荒, …), one at a time. After a stanza is introduced, the four characters enter a spaced-repetition queue. Each daily session takes 2–3 minutes: one new stanza plus a handful of due-for-review characters.
How do I change the reading language?
Open the Settings tab and choose Reading Language. By default the app follows your iPhone or iPad system language. You can also turn on Show readings in all languages to see Korean, Japanese, and English side by side.
How do I reset my progress?
Open the Settings tab and scroll to Reset Progress. This is permanent — there is no cloud backup because nothing is stored in the cloud.
I think a Korean reading or translation is wrong.
Please email us with the stanza number and your correction. We source readings from Korean Wikisource and welcome refinements.
Email [email protected] with your iOS version, your device model, and a description of the issue. Screenshots help a lot.