From Obrien Charlie:
Sabbath School Quarterly app allows you to take your Seventh-Day Adventist Biblical studies wherever you bring your phone. Most Seventh-Day Adventist churches teach on the same topic or reading in a given week, as each quarter of the year has a different theme that reflects Bible, doctrinal, or church lifestyle teachings. Thus the lesson booklet is called quarterly. This app provides you with all of the Sabbath School quarterlies for the current. The app allows you to hone in on the specific week and day of study and enables you to move from one day to another. This app is absolutely free. All content is produced by the SDA church.