Time Attendance app

Time Attendance Application Is in-corp application meant to target specific company to serve its employees helping them showing reports about their attendance,check in,check out and add request vacations.
The Application Consists of 3 Major Roles (Employee-Manager-Admin)
The Employee Has ability to show his own reports and check in / check out using his current location or depending on the wifi network he is connected to.
The Employee Can Also Add Vacation Requests , Early Leave Requests and track the status of each request.
The Manager Is Basically a normal employee with some higher roles ,he can do whatever employee does in addition to Viewing Reports For employees of the department he manages.
And viewing some statistics about work flow and daily attendance.
The Admin Has Roles To Add Check Location Where Employees Can Check in to calculate their attendance and can add allowed wifi networks with which employees can check in/out via them.