I have been trying out Classyshark 3xodus and found the following trackers in QKSMS:
A product analytics company for web or mobile, they seem to focus on gathering information on product use.
Monitors app stability, I do not see anything wrong with that.
A business analytics company that tracks user interactions with apps and provides tools for “targeted communication” with them.
After doing web searches on these trackers I believe that the description of QKSMS should be edited to mention that this app will gather data about you.