difference betw nessus and tenable.io

hi, I am analyzing some vulnerability scanners and I have focused on nessus ...

i have seen that there are multiple versions available such as nessus (pro and essentials) and [tenable.io](https://tenable.io).

The latter is a cloud service and differs from nessus but I did not understand what the other most important substantial differences would be ...

cybersecurity nessus tenable