Hello,
I'm a iOS and Mac OS developer, I have experience work with Swift and Objective-C. I already work with Extension (new in iOS 8 and Mac OS 10.10), but this is project for Mac OS (show sync status same dropbox). I can make other extension for iOS, please contact with me, my Skype is nguyenthanhhung19872004
I hope to have chance to work with you.
Thank you.