In order to always keep your CEEFIT sensor up to date, you can update it regularly via the Seaver app. As soon as you connect your CEEFIT sensor to the app (Menu > My devices), an update will be installed automatically if a new version is available. A little tip: It works best if you have your CEEFIT on the charging station with you. To keep your Seaver app up to date, you can update the app yourself in the App Store or Google Play Store.