WhoIsIn is a web-based biometric attendance tracking system, focused on tracking the attendance and employee movement, especially for businesses with multiple offices and more specifically, retail chains. Along with Attendance tracking WhoIsIn offers functionalities on leave management, low staff alerts at required locations, shift schedules etc.. It’s integration to payroll offers the customers a robust system. WhoIsIn is offered by Software-as-a-Service (SaaS) model, where there is no capital expenditure (on the Hardware & Software), but only operational expenses. The charges are calculated based on the number of employees, devices deployed etc.