Glory to God! This is the King James Version of the Bible. There no complex functions in this app, very simple and straight forward. 1. You can flick left or right to change chapters. 2. You can do a quick search. 1. You can bookmark verses. 2. You can copy verses. 3. You can change font size. 4. There are day and night reading mode. 5. There are ad banner to help support the developer. ( If you find the ads disturbing your time with God, please turn off the internet and the app will return to full reading screen.)