Just to elaborate more, I have a client who has Nintex workflow hybrid and intends to use it on Office365. And later on they might create on premise Sharepoint 2016. So my question is does Nintex workflow hybrid mean it can be used to develop both kind of environments?

There is no such license as a hybrid. However having Nintex Subscription license allows you to build your workflows in Office365 and your on-premise environment within the purchased quotas.

Regards, 

Tomasz 

Thanks I got it now.

‌ can you change the discussion into question so that ‌ can close it?

Regards,

Tomasz