Thank you for using our service.
In order to provide better service, we will be changing the supported Android OS version.
Please check the following information for future changes.
Customers using Android OS 5.0 or lower
You will no longer be able to install the grand sumo app from Google Play.
If you are currently using the application, you can continue to use it unless you uninstall it.
(However, there will be no future updates or bug fixes.)
Customers using Android OS 6.0 or higher
You can continue to use the latest version of the application.
Date of change
The above changes will be made starting with the application to be released in June 2025 (version to be determined).
If you have any questions or concerns, please contact our customer support desk.
Thank you for your cooperation.