Recommended and mentioned products
Open source business intelligence tool.
Analytics for web and iOS. Heap automatically captures every user action in your app and lets you measure it all. Clicks, taps, swipes, form submissions, page views, and more.
Highly recommend Heap  - they have a neat approach that doesn’t require you to ‘decide’ which analytics you want to track ahead of time. Disclaimer: I was an early engineer at Heap.  https://heap.io/.
Qualitative, quantitative and live testing to improve the user experience.
Heap might be good but they are crazy expensive. We were quoted something like a quarter million dollars. Good luck getting that signed off, plus you still need quite technical analysts to run the thing. I've found https://contentsquare.com/ to be much better received by juniors and seniors alike, and it's a fraction of the cost of heap.