Time Tracking for Consultants

Your income is your hours, so every billable minute needs to be captured, billed, and booked. Timebook does all three in one app: track time, turn it into invoices, and keep clean books. Free to start.

Capture every billable hour

Start a timer when a client call or work block begins, tag it to the engagement, and stop when you are done — a clean record of exactly what you worked on and what you are owed. Free, for as long as you want.

Let your AI agent log it

Timebook is in the ChatGPT app store and speaks MCP, so ChatGPT, Claude, or any AI agent can log time as you go. You stay in the client work; the timesheet fills itself.

Turn hours into invoices

Your tracked hours flow straight into a professional PDF invoice — by engagement, by rate, or by retainer — in a couple of clicks. Send it, track it to paid, with no separate billing tool.

Clean books, no second tool

Because invoicing and bookkeeping live in the same app, the moment a client pays it lands in your books, Schedule-C-oriented for a single-member LLC or sole proprietor. Tax time is a review, not a reconstruction.

Frequently asked questions

What is the best time tracking app for consultants?

For an independent consultant who bills by the hour, the best fit is a tool that does more than time: it should turn those hours into invoices and keep books, so you are not stitching a timer to a separate billing app and a spreadsheet. Timebook does all three in one place, with free time tracking and a flat Pro price.

How do consultants track billable hours?

Start a timer when a client call or work block begins and stop when you finish, tagging each entry to the engagement and rate — or log the time after the fact. With Timebook you can also let an AI agent log it for you via the ChatGPT app store or MCP, so tracking does not pull you out of the work.

Can I invoice clients directly from my tracked time?

Yes. In Timebook your tracked hours become a professional PDF invoice in a couple of clicks — grouped by engagement or rate — which you send and track to paid. The income then lands in your books automatically, so there is no separate billing step.

How much does consultant time tracking software cost?

Timebook keeps time tracking free forever and charges a flat $29.99/month for Pro, which adds invoicing, bank sync, and bookkeeping — no per-seat pricing and no tiers. There is a 14-day Pro trial that needs no credit card.

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