The 500 Life-studies (500LS) app aims to help and encourage believers to become constituted with the truth in the Bible by using the Life-study of the Bible in a regular and habitual way. The Life-study of the Bible, a monumental and classic work by Witness Lee, is a book-by-book exposition of the entire Bible from the perspective of the believers’ enjoyment of Christ as life for the building up of the church as the Body of Christ. The "500" refers to the goal of reading at least 500 Life-study