CLOCK: Timer & Invoice Maker
Billable Hours & Time Tracker
$14.99 · Designed for iPhone. Not verified for macOS.
Track your hours. Send the invoice. Get paid.
CLOCK is a work-session timer and invoice maker in one. Start the clock when you start the job, stop it when you're done, and CLOCK turns your time into a clean, professional PDF invoice you can text or email to your client on the spot.
PAY ONCE, OWN IT
No subscription. No monthly fee. No account to create. No ads. Buy it once and invoice forever. (The big invoice apps charge $50 to $200 EVERY YEAR.)
WORKS COMPLETELY OFFLINE
Job sites don't always have signal. CLOCK doesn't care. Everything runs on your phone: the timer, your history, the PDF builder. Nothing touches a server, ever.
BUILT FOR HOURLY WORK
- Set your hourly rate, hit START
- The timer survives phone restarts (job-site proof)
- Split sessions across clients or tasks
- Session history keeps every job on record
INVOICES THAT LOOK PROFESSIONAL
- Clean PDF invoices generated on your phone
- Don't need the timer? Skip it. Edit any invoice by hand and send it: flat-rate jobs, materials, deposits, whatever you're billing
- Edit line items, amounts, and client details before sending
- Send by text, email, or AirDrop straight from the share sheet
- Your data stays yours: no cloud, no tracking, no analytics
WHO IT'S FOR
Freelancers, contractors, technicians, tutors, session musicians, engineers, consultants: anyone who bills by the hour and wants paid without fighting software.
Built by a working recording studio in Austin, Texas, because we needed it ourselves. We bill hours for a living. This is the tool we use.
One price. No subscription. Start the clock.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Apple Watch app. Start, pause, and save sessions from your wrist. The watch and the iPhone stay in sync: start on either one and the other follows, and your running total shows on the watch in your rate. Pick a color on the phone and the watch matches. Sessions saved on the watch land in History and invoice like any other.
The developer, David Click, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- David Click
- Size
- 5.9 MB
- Category
- Business
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 8.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 David Click / The Oven ATX

