Great time tracker SalaryBook for iPad turned free (bit.ly)

Freelancers, consultants, and professionals can keep track of their working hours and earnings with this business app.

It allows you to define your working days and hours. The app will then automatically calculate how much you have worked and earned. You’re able to create presets to make things more efficient, and you can attach notes to each entry to keep things tidy. The app also includes the ability to add overtime and non-billable time, Dropbox integration, salary and worked time reports, and passcode protection.