Co-editing with clients (and associates)?
I recently upgraded from a perpetual licence to a full one to be able to co-edit with clients and associates. Really disappointed that they cannot do this in either a brower or teams without them having a licence. Seems crazy since I am effectively selling mindmanager to them by letting them play with it. Why don't you offer a free contributors licence in exchange for their name and email? You would restrict them to edit only rights i.e. no mind map creation or saving.
You could then send them follow up emails to convert them to customers. Would seem a good pathway to growing the customer base more rapidly - and I would have happier clients and associates. Would be a win-win rather then the lose-lose that I am now locked into until I can downgrade again.