Apache Unomi vs Piwik PRO Customer Data Platform comparison

Apache Unomi™ (pronounced "You know me") is a Java Open Source customer data platform, a Java server designed to manage customers, leads and visitors data and help personalize customers experiences while also offering features to respect visitor privacy rules (such as GDPR).
Apache Unomi is a REST server that manages user profiles and events related to the profiles. It can be used to integrate personalization and profile management within very different systems such as CMS, CRMs, Issue Trackers, native mobile application. It was designed to be easy to integrate with external systems, promoting profile sharing and re-use in very different applications.

Create complete customer profiles and segment your data into audiences. Activate them to provide a personalized experience and run effective campaigns across channels. Keep your clients’ data safe with a privacy-first Customer Data Platform.
Connect siloed data sources into clear records that map all user traits and behaviors. No coding is required. Trigger audiences based on any conditions, including real-time customer interactions. Personalize customer experience across channels to reach the right people at the right time.