Lenstag‘s stated goal is to put a stop to camera and lens theft, and for that reason alone photographers love them.The service is basically an online registry where you can securely document all of the gear you own and, in the event the unthinkable happens, report it as stolen and make it much more difficult for the thieves to sell that piece of gear.
This app is one (as a photographer) really needs. As documentation goes, we need a program that will list all of our equipment not only to keep track but if anything is ever stolen, it will be easier to report.