Google Analytics 4Google Analytics 4 Google Analytics 4 (formerly known as “App + Web”) is a new kind of property, with several advantages over Universal Analytics: Privacy-focused and durable for the future Intelligent, using machine learning to unearth insights about the customer journey across platforms and devicesEnhanced, seamless integrations with Google’s advertising platforms to optimize campaign performance and drive greater marketing ROIsource : https://support.google.com/analytics/answer/10089681 (formerly known as “App + Web”) is a new kind of property, with several advantages over Universal AnalyticsUniversal Analytics A statement made by Google in March 2022 revealed that Universal Analytics is set to stop providing services, with Google Analytics 4 to replace it by July 1, 2023. According to this, while users will be able to use Universal Analytics until the date mentioned, it will not be possible to process any data in UA after July 1, 2023, as pointed out by Google.source : https://en.wikipedia.org/wiki/Google_Analytics: 

• Privacy-focused and durable for the future 
• Intelligent, using machine learning to unearth insights about the customer journey across platforms and devices
• Enhanced, seamless integrations with Google’s advertising platforms to optimize campaign performance and drive greater marketing ROI

source : https://support.google.com/analytics/answer/10089681