Timecomb: Time Tracker for Square Invoices by Dgraciano
Track time for your Square customers and add unbilled hours to Square invoices. Not affiliated with Square.
Some features may require paymentSome features may require payment
Available on Firefox for Android™Available on Firefox for Android™
Scan the QR code to open this extension in Firefox for Android
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About this extension
Square Invoices has no time tracking, and its one-time items only take whole hours. Timecomb tracks your time next to your Square customers and puts partial hours on the invoice for you, for a one-time price.
Track time
- Start a timer from any Square customer, or from Firefox's sidebar.
- Log time by hand: "1:30", "1.5" or "90m". Mark time billable or not.
- Hourly rates per customer or per entry, and optional rounding to 6, 15 or 30 minutes.
- Forgot to stop the timer? Timers over four hours are flagged so you can check them before billing.
See what's unbilled
- Unbilled hours and amounts for every customer at a glance.
- The running time shows on the toolbar icon.
Get it on the invoice (Pro)
- In Square's invoice editor, "Add unbilled hours" adds your logged time as line items. 2.25 hours at $80 goes on as one $180.00 line, with "2.25 h at 80.00/h" and the date in the item note your customer sees. You review and send the invoice as usual; Timecomb never sends anything.
- Or copy the lines and paste them anywhere.
- Hours are marked invoiced, with Undo, so nothing gets billed twice.
Also in Pro
- Unlimited customers (the free version tracks one open customer)
- Week view of hours per day and customer
- Contracted-hours budgets per month or per customer
- Printable timesheets per customer and date range (save as PDF to attach to an invoice)
- CSV import of old hours, Excel sheets or Toggl/Clockify exports
Your hours stay with you
No account and no server. Your hours are stored in your browser. Export a CSV backup any time.
Free to use. Pro is $19, paid once (no subscription).
Timecomb is made by Otter Potter and is not affiliated with, endorsed by, or sponsored by Square or Block, Inc. Square is a trademark of Block, Inc.
Track time
- Start a timer from any Square customer, or from Firefox's sidebar.
- Log time by hand: "1:30", "1.5" or "90m". Mark time billable or not.
- Hourly rates per customer or per entry, and optional rounding to 6, 15 or 30 minutes.
- Forgot to stop the timer? Timers over four hours are flagged so you can check them before billing.
See what's unbilled
- Unbilled hours and amounts for every customer at a glance.
- The running time shows on the toolbar icon.
Get it on the invoice (Pro)
- In Square's invoice editor, "Add unbilled hours" adds your logged time as line items. 2.25 hours at $80 goes on as one $180.00 line, with "2.25 h at 80.00/h" and the date in the item note your customer sees. You review and send the invoice as usual; Timecomb never sends anything.
- Or copy the lines and paste them anywhere.
- Hours are marked invoiced, with Undo, so nothing gets billed twice.
Also in Pro
- Unlimited customers (the free version tracks one open customer)
- Week view of hours per day and customer
- Contracted-hours budgets per month or per customer
- Printable timesheets per customer and date range (save as PDF to attach to an invoice)
- CSV import of old hours, Excel sheets or Toggl/Clockify exports
Your hours stay with you
No account and no server. Your hours are stored in your browser. Export a CSV backup any time.
Free to use. Pro is $19, paid once (no subscription).
Timecomb is made by Otter Potter and is not affiliated with, endorsed by, or sponsored by Square or Block, Inc. Square is a trademark of Block, Inc.
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Permissions and data
Required permissions:
- Input data to the clipboard
- Access your data for app.squareup.com
- Access your data for extensionpay.com
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.7
- Size
- 48.65 KB
- Last updated
- 25 days ago (Oct 6, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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