Hi there, @smczech! A notification should only be received one time, depending on settings and mobile device factors. For instance, the Rich Notifications feature can result in two notifications at times when an event is answered quickly or if you are using a smart watch with your Ring app (as smart watches are not fully or officially supported at this time). Please also ensure you do not have linked devices, Amazon Alexa enabled devices, or multiple mobile devices that might be also notifying for events, sounding like multiple alerts. I hope this helps! 