The best thing about Biblia Sagrada Gratis is its interface, which is really clean. By pressing on any of the books (Genesis, Exodus, Chronicles, Psalms, Proverbs, etc.), you can access all of the content instantly.
Biblia Sagrada Gratis is a really good Bible app, specially aimed at Portuguese speakers, be they from Portugal, Brazil, or anywhere else.
Requires Android 2.3 or higher