All in one application - that is Easy Redmine
RTL Radio use Easy Redmine to maintain help desk, resources, attendance and of course all IT and software projects. We like the complexity - using all-in-one solution is just wonderful.
Automatic and instant contact synchronization between Easy Redmine and your mobile device is now available using CardDav.
Detailed instructions to set synchronization in iOS are available in Contacts plugin description. For Android devices you can use different CardDav applications and use configuration as described in iOS.