NEW version 2.0! Track and record invoices, timesheets, and clients on the go from your iPhone! With the Invotrak app, you can: View and record invoices, and quickly see which ones are overdue. Record timesheet entries as you complete work (using the handy timer or manual entry). Use timesheet entries you record as line items in your invoices. Create professional PDF invoices and email them to your clients. Add and view client information.