A/B testing landing pages, optimize registration process

Maxymiser : got to know them before Oracle’s acquisition, serious, competent, expensive but excellent team super helpful

Moengage : never tested

Optimizely : worked a lot with that one, quite good

Unbounce : also spent a lot of time on that one, also pretty good

VWO Visual Website Optimiser : used a bit, quite good

Heatmaps:
Crazyegg
Hotjar

Learn:
CXL

Track funnels:
Fullstory
Mixpanel