It completely looks like spam. How are you going to know what my app is? You don't ask for my app, you only ask for my e-mail.
You could make this much simpler.
1) (as others have mentioned) state on your homepage what you do.
2) include a space for me to put my e-mail address, don't take me to another page
3) don't ask to spam me with your "We make some really cool things. Check this box if you would like the occasional email about our other products. Don't worry, we dont like spam either!" That just looks really bad.
Basically make it all a simple as possible.