142 karma · joined June 28, 2010
I'm expecting downvotes for this comment, but it is the best advice I can give. You will learn tons in the process and the end app will likely be tailored in your vision. Something along the lines of this (jump to 4:43) http://www.youtube.com/watch?v=Pgy4PcSpUkI
If I was a high profile entrepreneur working on a top secret project, I still wouldn't do a private beta. Instead I would block IP's belonging to tech savvy states like California and countries like China. Actually I think it is a good idea to block all of Asia. The majority of clones of my apps are created by people in China.
Full disclosure: I have an undergraduate degree in bioengineering from 2008. I did a lot of lab work, but never worked in industry. I've went straight into web apps after graduating.
Regarding investors, if this is a web app, IMO, you should have an alpha version with good traction before raising money.