Leviathan is a free Android app developed by Alexandr Shavykin that provides comprehensive and up-to-date information for League of Legends players. This app offers an in-depth description of champions and their abilities, most popular builds, picks and counterpicks, extracts from guides, items, runes, and other gameplay elements. Additionally, it allows users to create their own champion builds.

One of the best features of Leviathan is that it does not require an internet connection, except for champion skins, lore, and spell videos. This app is a must-have for any League of Legends player who wants to improve their skills and stay updated with the latest information.

Overall, Leviathan is a great tool that offers valuable information and helps players make informed decisions in the game. The app has a user-friendly interface and provides all the necessary information in one place. If you are a League of Legends player, you should definitely give Leviathan a try.