You have probably noticed some additional icons next to the menu icon. The icon that looks like an envelope contains your in-app notifications.
Notifications are set up by a Safety Mojo admin at your company. They alert you when a user in your Division/Project submits a form. In-app notifications can be set up for certain forms or no forms. You will see a number on the icon which represents how many notifications you have.
You can view your notifications by clicking on the envelope icon.