I use this every day. Ive invested a lot of money in it and its worth every cent. Other apps are good for basic Bible reading, but I use Logos with Greek and Hebrew, a number of different translations, a multitude of commentaries and dictionaries, all beautifully sync-ed. Telephone help is the best of any software Ive used--real people, readily available, knowledgeable and helpful.
I love the way you can customize the windows, and I constantly adapt them for what Im doing. Recent additions like the FactBook and the Lexham Bible Guides put everything at your fingertips.
Annabel R about Logos: Deep Bible Study, v5.2.2