Knack

Knack is a no-code builder for database-driven apps with sophisticated business logic and permissions. You can build multi-page apps with conditional visibility, user roles, record-level access control, and complex workflows. It syncs two-way with Airtable, so you can use Airtable as your database and Knack as your app interface.

Knack suits teams managing databases and workflows who need an app but don't want to hire developers. The Airtable sync is a major strength if you're already invested in Airtable for data. It's more specialized than Bubble (not for public apps or consumer use cases) and more complex than Jet Admin, making it the pick for internal apps with intricate access control and business rules.