What was the first app/ webapp that you created?

Well, my first "real" app in my mind was an international clock for Mac OS X. This was back when OS X was brand new and wasn't even the standard operating system on Macs, so I really didn't have any good existing options. I had a lot of friends in different time zones and I had trouble keeping track of who was likely to be available at a given time, so I made an overlay dashboard that I could glance at to see what time it was in whose area.

I'd made a bunch of little games and DHTMLy web pages before that, but that was the first one I thought of as an app I'd made.

Back when I had just started with web development, I created an online steganography tool. It took an uploaded image, and text. The text was encrypted using a passphrase (from user) and placed in the end of image file which didn't affect the image itself and a link was created for the user. Right now, I am bewildered what kind of dumbness had struck me? but I was really a kid those days :).

When I was wide-eyed, I built a lot of webapps that never saw the light of day -- various forms of social networks for niche groups. They were poorly written (saw some source code a few months and I nearly cringed) and I failed to do any market research before I started them -- but they actually taught me a lot.

Sold or just first serious app? Sold would be Mastermind for the Apple II. Integer Basic. Made a few hundred bucks. Even in 1979 that was not a lot.

Mind was a website to schedule an elective class for my school, it launches in january.