Starting March 26, 2026, Pokémon Masters EX will require iOS 15.0 or higher to play. This change is part of an effort to improve the game’s performance and support future updates. Players using older iOS versions will need to update their devices to continue enjoying the game. It’s a good idea to check your iOS version now to ensure you’re ready for the update when the time comes. This shift will help maintain a smooth experience for everyone as the game continues to evolve.
Source: Official Pokémon Masters EX site