Making investors sign NDAs? Bad idea. However sending your company internal information through email to outside sources? Also a bad idea.
pitchXO is in that sense the closest thing to a NDA. You will know who views your material, when, and what exactly they looked at.
But in order for them to view it, they will need to use their social login provider such as LinkedIn, Facebook or AngelList to gain access.
This gives you the freedom to know what happens with your content - and your potential investors the freedom of not having to sign a NDA - which they wouldn't anyway.
So if you want that extra peace of mind - pitchXO is here for you.
Henrik Zillmer, Founder of Airhelp, a Y Combinator Company - @henrikzillmer
"Keeping track of over hundred investors while building a financial startup would never have been possible without pitchXO."-- Torben Pedersen, Co-Founder Capital Aid