I want to buy RoboHelp 11, is the cost incurred of it is one-time cost or reoccurring cost. Please guide on that.
The current version is RoboHelp 12. At the bottom of the product page, you will find a "Buy now" button, which will guide you to the shopping cart where you can select. You can always buy a permanent license with is a one-time cost. In some countries, you also have the option to go for a subscription (low monthly price, reoccurring costs).
In addition to Stefan's comment: if you take the subscription model, you can also use that for RoboHelp 11. You can download the old version and it will license against your subscription as well.
... and if you have proof of purchase, sometimes Customer Support can issue
a new licence.
Thanks for the answer, Stefen, William, and Peter.
Can you please guide me from where i can go with subscription for monthly pay.