I have used eSword for years now, but a first time for me on a smart phone. I am still impressed!
It is highly functional. There are so many resources available to eSword. You can choose from many Bible translations and languages. Being able to compare translations side by side is a great feature. The dictionaries, concordances and commentaries are easy to find and use, and the devotionals are there for those of us who find it a challenge to make, find or steal time to read Scripture.
So eSword is powerful, and easy to use with a wide range of resources. Finally, it is also beautiful. It was the first app I went to download when I went to the dark side and bought an iPhone.
Dave Simonson about e-Sword LT: Bible Study to Go, v6.0