Portal guests aren't priced individually, as they're sold in 15-seat packs at $8 each. If you only need 5 guests, you still pay for the full 15-seat pack.
Use the calculator above to see what that works out to for your actual guest count.
Yes, connecting your existing Airtable base to Noloco is typically significantly cheaper than Airtable + Portals once you factor in guest packs and multiple portals, because you pay a flat build cost instead of a second per-pack fee for every group of external users.
Yes. Noloco reads and writes to your existing Airtable base: your data stays in Airtable, and Noloco builds the portal layer on top, so nothing about how your base works day-to-day has to change.
It depends on how you're using Airtable. If your base is just where the data lives, Noloco can connect to it with two-way sync and add the interface, permissions, and portals on top — Airtable stays in the picture. But Noloco also has its own built-in database, Noloco Tables, so if you'd rather not maintain a separate Airtable base at all, you can move your data there instead and run everything from Noloco directly.
Airtable Portals doesn't include free guest seats by default, every guest is covered by a purchased 15-seat pack, and you're limited to one portal per base.