In my mind Stealth doesn't mean TOP SECRET no one can know.

It comes in degrees. Your investors probably know, you share your idea with people you trust who can give you feedback and could even have paying customers/beta users and still be in 'stealth' mode as you try to find product market fit.

Stealth mode means you haven't announced anything publicly. Getting customers, investors and advice privately is perfectly okay.

Would #3 above not anger investors for wasting their time? I cannot see someone being happy after taking the time to talk to you, especially if they are busy, and you don't want to talk and ask them for money.

Here is a test to see if your idea is or isn't pursuing: ask yourself if I tell everyone then would I have no competitive advantage? If the answer is 'yes' then don't build it. Here is why: you know when you tell everyone what you're doing? On the day of your launch. So if you have no advantage over anyone after launching, then why do it? You must bring something to the table. Maybe you should think harder about what you are doing at that point.

Most of the angel groups I've looked at won't sign NDA's. They expect you to be at a point where you are ready to disclose your project.

As much as we want to be the first to announce or offer our idea, producing a good product is far more important. The honest truth is that you will have competition, no matter how secretive you are. You can't hide the idea if you want to make money.

I agree with abbasmehdi's comment.

So now, will you tell us what you build?

I'm building a social payments service.

Where you can send money to anyone you know direct into their bank account for a small %. The money appears in ones account in no more than 15minutes.

We're going to be launching in around 16weeks in the US. The UK a little after.

Funnily enough our sign up page goes live in about one week.

NDA? With investors, at least?

Investors don't sign NDAs.

I wouldn't ask an investor to sign an NDA. I was just a jerk and didn't trust or even respect anyone.

So immersed with my 'perfect' idea.

We all learn.

I'm curious as to why you did it this way. I'm kinda surprised that you didn't tell your investors (and you got investment!) Most stealth companies let their investors know.

The thing I like about being "stealth" is that we can make changes without having external expectations to deal with. Probably the only time we'll be able to do this.

I kind of only truly pitched to one investor. He invested luckily.

Probably because he's almost family more than anything else.

But you wouldn't tell him?

I told him a overview, so brief I wouldn't personally of invested.

Ahh, good old St Louis, Missouri, where everyone has so much money that they're willing to invest in pretty much any random jibber-jabber.

Ha. There I go again, pretending I live around stuff-that-matters. Never come here.