If you're using a mobile device you'll need to use the app instead of browser, as mobile devices don't have the operating power required for the browser version of games
From 1st May, older versions than version 81.0.2 will no longer work. This is to support essential updates.
iPads/iPhones
CLICK HERE TO DOWNLOAD THE APP
You will need minimum iOS 11.0 or later.
Android Devices and Chromebooks
CLICK HERE TO DOWNLOAD THE APP
You will need a minimum Android v5.0 or later.
The latest version of the Sumdog app is version 81.0.2
From 1st May, the minimum version of the Sumdog app that will run is 81.0.2. If you are using an older version of the Sumdog app, it will not run until you update to the newest version.