Is there an open source neural network library for iOS?

Thanks a lot! I found a couple but aren't fully featured:

http://www.findbestopensource.com/product/neurosis (school project)

http://nikolaypavlov.github.io/MLPNeuralNet/ (only perceptron, no back propagation)

I also found a C library that I could theoretically integrate in:

http://stackoverflow.com/questions/18704779/how-to-install-a...

I found a couple Objective-C libraries here:

https://github.com/nikolaypavlov/MLPNeuralNet https://github.com/devongovett/SNNeuralNet

I can't comment on how it's designed, or whether it's easy to use. But it looks pretty good.