Here is an excerpt:
STEP Bible is a Tyndale House project to build high quality free reliable Bible tools, with the aim of enabling anyone who wants to study the Bible seriously to do so. This has grown out of the free Tyndale Toolbar which is being used by thousands of people all over the world.
In many parts of the world the growth of the Church is outpacing the training of leaders and teachers, and Bible schools are struggling with limited resources. Many believers do not have a computer with reliable internet access but more and more people have access to mobile phones, and many to computers with SOME internet. We have created the STEP software from the ground up with these limitations in mind.