How would one limit a free offer to a certain country? We could definitely to a user-limited free pass, but we'd want to have it exposed only to new users, so we don't lose existing recurring revenue.

"We could definitely to a user-limited free pass, but we'd want to have it exposed only to new users, so we don't lose existing recurring revenue."

That sounds like a recipe for alienating loyal customers, if they find out they still have to pay, but everyone new does not. Then they will just cancel their subscription and also become "new users".

Yeah, it could burn a lot of goodwill. The other option is to tell existing customers that we're trying out something new and pausing everyone's subscription for 3 months while we see what kind of growth we can get as a free tool. That would incentivize people to spread the word a lot, and if it does go well then we would feel comfortable cutting off the B2C revenue. But it would be weird messaging to hear from a company, which could just be confusing to people.

> How would one limit a free offer to a certain country?

You could choose a country with a unique language and limit the free version to that language.

Though I'd question a limitation to a single country itself. Cultural aspects do matter, and by doing so you pin down two variables at once, so the results are much harder to interpret.