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.
14-day Pro trial · no credit card
Consulting income is measured in hours, so a leaked or forgotten hour is money gone. Start a timer when a client call or work block begins, tag it to the engagement, and stop when you're done — a clean record of exactly what you worked on and what you're owed. Free, for as long as you want.
Timebook is in the ChatGPT app store and speaks MCP, so ChatGPT, Claude, or any AI agent can log time as you go — "log 90 minutes on the Q3 strategy review for Acme." You stay in the client work; the timesheet fills itself.
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. No exporting to a separate billing tool, no re-typing at month end.
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 across three tools.
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.
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.
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.
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.