You're facing an uphill battle. Angels and Seed Funds see a new app every hour of the day. Same goes for incubators and accelerators. No one will invest cold because there is no way to protect it. There's nothing patentable. You'll have to show rapid user adoption. If you can hit 10-20k users within a few months after launch, you might have a chance. Even then, it will be tough because so many that have a quick adoption rate see their monthly user rate fall through the floor. You'll also need to live in a major hub - San Fran, Austin, NY or Boston.

If you still want to pursue your idea, start small and test each feature before investing a significant amount of money. Research the Agile method of software development and follow it. If you want to talk, I'd be happy to talk you out of pursuing this idea. Ha. Just kidding - sorta.