Time and motion for the modern age
Back when a typical worker had to clock in at a machine in the morning and clock out again in the evening, life was simpler, probably poorly-paid, and surely a lot more dull. Now we are liberated by technology -- and we can clock in on our Apple Watches. Hours Time Tracking 1.5.2 isn't a full-blown invoicing time system, but it's a good app for noting what you're doing, how long you're doing it for, and who you should be billing for it.
Neat way of keeping a log of hours worked, though setting up is weak
[Updated with correction for program authorization] This is you: you may be no good at the money side of anything. Unless you're an accountant, in which case we apologize. Everyone else, though, most especially anyone who works freelance, or in a one-man or one-woman company, often struggles with the financial side -- because the money part is not primarily why you got into business. Hopefully you'll be earning lots, but you started your business because you wanted to do what that business does, and you'd rather be your own boss and risk failure than do some other kind of work to make somebody else wealthy. Consequently, your interest and focus is on the job. Somehow, you have to also keep an eye on the money -- and that's where TaskTime4 comes in.
iBiz 3, time billing
Many professionals need to track their time for billing purposes. You could manually write down the times you start and stop a project, but then you’d still have the headache of writing out an invoice as well. For a simpler, automated solution, consider iBiz 3 to track your time and print up your invoices.