Accordance is a bible study program for Apple Macintosh

Macintosh

The Macintosh , or Mac, is a series of several lines of personal computers designed, developed, and marketed by Apple Inc. The first Macintosh was introduced by Apple's then-chairman Steve Jobs on January 24, 1984; it was the first commercially successful personal computer to feature a mouse and a...

 and iPhone

IPhone

The iPhone is a line of Internet and multimedia-enabled smartphones marketed by Apple Inc. The first iPhone was unveiled by Steve Jobs, then CEO of Apple, on January 9, 2007, and released on June 29, 2007...

 developed by OakTree Software, Inc. Reviewers consider it a premium program.

As well as a standalone program, it is the base software packaged by Zondervan

Zondervan

Zondervan is an international Christian media and publishing company located in Grand Rapids, Michigan. Zondervan is a founding member of the Evangelical Christian Publishers Association .- History :...

 in their Bible Study suites for Macintosh. Although Accordance has been written exclusively for the Mac OS

Mac OS

Mac OS is a series of graphical user interface-based operating systems developed by Apple Inc. for their Macintosh line of computer systems. The Macintosh user experience is credited with popularizing the graphical user interface...

 and iOS, it also runs on PCs using the Basilisk II

Basilisk II

Basilisk II is an open source software emulator which emulates the 680x0-based Apple Macintosh computer on a variety of operating systems, including BeOS, Linux, AmigaOS, Windows NT, Mac OS X and even on the Sony PSP....

 emulator.

The program is used for both private and academic study.