“helper” is iOS app for finding a co-worker who can work on behalf of you.

If you meet urgent situations such as illness and school activity, helper can ask your co-workers who are available at that time to take over your shift.

You only need to create a group for your working team on helper and add their google accounts in advance.

Compatible Terminal: iOS7 (4-inch)  
Language: Objective-C, Java  
Development Environment: Xcode Version 5.0.2, Emacs 
Server: Google App Engine 
API: Google Apps API, Facebook SDK for iOS 
Other: AFNetworking、MBProgressHUD、JavaPNS、Google Cloud SQL