The free apps below are either available for Windows or Macs. Links are provided for each OS that the app is available. Some apps have advertising to offset their cost of free and offer in-app purchases.

 Verbum Verbum Catholic Bible Study

FREE RESOURCES INCLUDE:

The Catholic Lectionary, The Roman Catechism, Pictorial Lives of the Saints, Sources of Catholic Dogma (Denzinger), Thomas a Kempis’ The Imitation of Christ, Newman’s An Essay on the Development of Christian Doctrine, Chesterton’s Orthodoxy, and many more.
Free Bibles: The Douay-Rheims, King James Version, Clementine Vulgate, Novum Testamentum Graece (Tischendorf), The Greek New Testament: SBL Edition, Westcott-Hort Greek New Testament, Lexham English Bible.

TOP FEATURES:
Lectionary—go right to the readings of the day with a tap.
Catechism of the Catholic Church—the app integrates fully with the Logos edition of the Catechism.
Notes—Attach your thoughts, comments, and questions to any verse or book.
Highlighting—Mark the words that matter with fully customizable color and text options.
Community Notes—Share verse-by-verse thoughts and comments with your Faithlife groups.
Bible Word Study—Learn more about any word by examining dictionaries, lexicons, and cross-references.
Passage Guide—Get a detailed, verse-specific report including commentaries, lexicons, and cross-references.
Split Screen—follow threads of meaning through multiple books at the same time.
Search—Find every mention of a word or phrase in every resource in your library
Social—share with your Faithlife Groups and keep up with what’s going on.

Know of any others?  I’d be happy to look at them for consideration.