Unison League is a free-to-play real-time RPG game developed by Ateam Entertainment Inc. It is available on iPhone 5 or later and iPod Touch (5th generation or later). The game allows players to battle alongside friends and unleash over-the-top special attacks. It offers intense guild battles where two teams of up to 10 players each can compete in real-time. The game also includes Unison Attacks that can call forth powerful entities to eliminate enemies.

In addition to the guild battles, players can collaborate with up to 5 friends to brave the various terrains of Granvia. The game offers an easy-to-use mid-battle chat feature for timely commands and adorable character animations for comical in-game lobby conversations. Players can battle or "Spawn" for weapons, armor, and monsters. The game allows players to carefully select Gear with the best affinity to their Class to yield the greatest results. They can also earn "Proficiency" to learn new abilities and harness even greater might.

Overall, Unison League is an impressive game that provides an awesome real-time play that will keep you on the edge of your seat. However, it is recommended to have a Wi-Fi connection for the optimal experience, and the game may fail to run smoothly under certain conditions.