@Peka
If you make your collaborators read-only users, you will not be charged for those users.
Alternatively, if you just one to pay one low monthly fee for up to 25, 50, or 100 users, you can always turn to Noloco’s advanced interfaces for Airtable.
The CEO of Noloco gave a demonstration of his product on this Airtable podcast episode.
I also give a brief tutorial of Noloco on this Airtable podcast episode.
And I also presented a full one-hour webinar on Noloco called Building a Client Portal on Noloco powered by Airtable.
p.s. If you have a budget for your project and you’d like to hire an expert Airtable consultant to help you with any of this, please feel free to contact me through my website: Airtable consulting — ScottWorld