Download the ClientTracker Desktop Upgrade for Mac

                   Use this installer ONLY if you are in ClientTracker v4 or v5

ClientTracker 6 works for 10.9 Mavericks, 10.10 Yosemite, 10.11 El Capitan and 10.12 Sierra.   

To run the ClientTracker 6.0.07 Upgrade.app,  you need to temporarily adjust your Security and Permissions. 
Click for Instructions to Install this Update

---