Yes Qlik Sense Cloud Business has this - you can learn more here:
I talk about at the Qlik Sense Cloud Business - Orientation Overview - YouTube - 10m 59s mark in the video.
NPrinting - has nothing to do with scheduling a refresh of data in a Qlik Sense app - NPrinting is for creating operational and pixel perfect-type reports using content in a Qlik Sense app. Qlik Sense Enterprise - has its own scheduling interface to refresh data with more intervals and triggers. Qlik Sense Cloud Business - has a subset of these schedules since it is on a shared hosted cloud.
In regards to funtionality - this can be done in a visual indicator on the dashboard chart object - using a rule that meets your criteria. If you mean an actual "alert" - there are extensions that can do this, but alerting is not out of the box with Qlik Sense. Here is an extension that sends email alerts based on a data condition: Qlik Branch
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