You can easily decide whether you want to receive notifications through your mobile app (push notifications) and/or by email.
You can even decide not to receive some of your notifications. This is only possible for "minor" notifications (see the difference between "major" and "minor" notifications).
To manage your notification settings, sign in to SportEasy (on the website only), and click on "My account > My settings" in the top right corner:
You will then have the opportunity to decide whether you want to receive notifications by: "Email + mobile", "e-mail", "mobile" or - in the case of minor notifications - "Do not receive anything".