The Bible App was far less engaging as a desktop Web site; the mobile interface increased accessibility and usage by providing frequent triggers. The Bible App increases users’ ability to take action by front-loading interesting content and providing an alternative audio version. By separating the verses into small chunks, users find the Bible easier to read on a daily basis; not knowing what the next verse will be adds a variable reward. Every annotation, bookmark, and highlight stores data (and value) in the app, further committing users.
