The difference between QlikView and Qlik Sence is:
QlikView Qlik Sense
QlikView is a hidden script. Qlik Sense can be used anywhere in code.
ETL and OLAP are supported. ETL and OLAP are not supported.
Supports SaaS/ multi-cloud platform. It does not support SaaS/ multi-cloud platform.
Data mining or analytics is not possible. Data mining or analytics is possible.