Pokémon Masters EX, the strategy and battling Pokémon game for mobile platforms, is now available for download on the App Store (iOS) and Google Play (Android). In celebration of the game’s popularity, special in-game events and rewards are being offered for all players to take part in on a regular basis.
Android 11 Stability
Updated:
October 9, 2020 at 3:00 a.m.
We have updated information regarding the Android 11 compatibility issue.
Current Status
- We are now confirming the game’s stability under Android 11 and expect to complete our check soon.
- We ask that you please refrain from updating your OS until then.
Note: We have resolved this issue as of October 9, 2020 at 3:00 a.m.
Notice
We may not be able to provide support regarding the stability of the app nor any inquiries for players who update their OS before our check is complete.
We sincerely apologize for any inconvenience caused.
We hope you continue to enjoy Pokémon Masters EX.
Source: Official Pokémon Masters EX site
Pokémon Blog 
My phone have Android 11 but then also showing this device isn’t compatible with this version
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