Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

Zoho Creator - Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.

Ragic - World's most advanced online database engine. Build powerful online databases with simple Excel style online interface.

iFreeTools Creator - Home - iFreeTools Creator - Create your own customizable database apps online, over Google App Engine and map it to your Google Apps.

Knack - Knack is the easiest, most spectacular business management software available.

Azure Web Apps - Create and deploy mission critical Web apps that scale with your business