If I’m not mistaken, Caspio is the only one that requires no programming and does not charge based on number of users. If you’re building an application designed for many users (i.e. public registering to become a member and gain access to your application), then Caspio is the best solution. Also, the app that you build can be integrated to existing website hosted anywhere.

Do any of these PAAS work the same way?

thanks for the post, I’m going thru your list and want to mention that you didn’t included http://www.MyTaskHelper.com
in fact it’s only one completely free online database builder. You should check it out.

Thanks,
Sincerely,
Igor

Thanks for including TrackVia! You mention that we’re expensive, and given that it’s a subjective term, I won’t argue. But I will say that we offer a premium, highly secure service that includes free phone support and hands-on help with building, maintaining, and tweaking applications. We spend lots of money on infrastructure, datacenter hosting, and professional services for intrusion detection, firewall monitoring, etc. These are the factors that are important to our customers, much more so than trying to get the cheapest price.

Thanks again,
Chris