This free and open-source chess app, built by chess enthusiasts, offers a comprehensive online and offline chess experience. Boasting over 150,000 daily users and rapidly growing, it provides a variety of game modes including bullet, blitz, classical, and correspondence chess, along with arena tournaments.

Key features include:

• Diverse Game Modes: Play bullet, blitz, classical, correspondence chess, and participate in arena tournaments.
• Social Features: Find, follow, and challenge other players, and track your game statistics.
• Practice & Learning: Sharpen your skills with chess puzzles and explore various game variants.
• Game Variants: Enjoy online and offline play with Crazyhouse, Chess 960, King of the Hill, Three-check, Antichess, Atomic chess, Horde, and Racing Kings.
• Analysis Tools: Utilize local computer evaluation, server-based analysis with move annotations and game summaries, an unlimited opening explorer, and an endgame tablebase explorer.
• Offline Play: Play against the computer, or engage in Over The Board mode with a friend.
• Additional Features: A standalone chess clock, board editor, and support for 80 languages are included.
• Platform Compatibility: Designed for phones and tablets, with landscape mode support.
• Completely Free & Open Source: Enjoy ad-free gameplay and access to the source code (GPL v3). Mobile app source code: https://github.com/veloce/lichobile, Website and server source code: https://lichess.org/source.

Version 8.0.0 (Updated Dec 10, 2022):

This latest version includes ongoing updates, improvements, and bug fixes. For detailed release notes and further information, visit: https://github.com/veloce/lichobile/releases