NKJV Bible by Olive Tree is an iPhone app that offers users an easy-to-use platform for reading and studying the Bible. The app provides a range of Bible study tools that can be accessed without the need for a Wi-Fi connection. In addition to the Bible itself, the app offers digital books, including audio Bibles, reading plans, devotionals, Bible maps, study Bibles, and commentaries, all of which are designed to help users delve deeper into God's Word.

One of the standout features of the app is its Study Center and Resource Guide tab, which allows users to access a range of resources and read them alongside the Bible of their choice. The app also offers Bible study subscriptions, which provide users with hand-picked study tools and guided training. Subscriptions are available for NIV, ESV, and NKJV Study Packs. The app comes with a range of Bible translations, including NIV, ESV, KJV, NKJV, and more, and users can customize their Bible by highlighting and saving favorite passages, creating notes, and adding tags.

Overall, NKJV Bible by Olive Tree is a comprehensive and user-friendly Bible study tool that offers a range of resources to help users connect with God and His Word.