If you're an art fan, an application of the likes of Art-droid can be very useful on your Android phone. Downloading this encyclopedia full of paintings and painters can help you to expand your knowledge in the field of painting.
A universal painting encyclopedia
It's an art encyclopedia for mobile phones, the content of which is provided by Wikiart.org. Here you'll find a huge database with the main painters of all time: Renaissance, Baroque, Cubism, Expressionism... All styles are represented in this database that brings together the most noteworthy examples.
You can find explanations about many of the works but also a database with artists where you can find details about their lives and styles. You'll also have the chance to read about the main features of each style and the most important movements in each one of them, allowing you to appreciate the peculiarities of each masterpiece according to the artist, the moment in history and the social and political context of that moment and place.
All in all, it's a great painting encyclopedia that you can download in APK format.