Toggl Track
Best for Simple timers and client billingWebsite: https://toggl.com
Best for: Simple timers and client billing
Starting price: $9 per user/month (billed annually)
Free plan: Yes
Pros: One-click timer on web, desktop and mobile; per-client rates and project estimates
Cons: Billable rates need the Starter plan; profitability reports sit on the Premium plan
Toggl Track keeps the timer simple, which matters when you switch between clients several times a day. One click starts the timer, one click stops it, and entries sync across the browser, desktop and mobile apps. You can set up a separate project for each client, add tags for tasks, and see where the week went in a summary report. Idle detection prompts you when the timer runs with no computer activity, so forgotten timers do not quietly inflate a client bill.
The Starter plan at $9 per user per month billed annually adds billable rates, project estimates and team reports. That is the plan most freelancers need, because the free plan does not include billable rates. Set a different hourly rate for each client project, round entries to the nearest interval, and export a report per client at the end of the month. Premium at $16 per user per month billed annually adds profitability reports, timesheet approvals and fixed-fee projects. The free plan covers a limited number of users with unlimited projects and time entries, which is enough for a solo freelancer who bills by the hour and wants clean records.