00the fifteen seconds
Charging for the extra now takes less time than doing it.
Paste what your client asked for. onetap returns a priced, dated change order and one approval link. The client taps Approve — no account, nothing to install.
- 15s
- to send
- 1
- tap to approve
- 0
- accounts for the client
Change order
Add French landing page
Includes
- Translation of the 6 existing sections into French
- A /fr route with a language switch in the header
- One round of corrections after your review
Does not include
- Translation of the blog or the help pages
- New pages added after launch
Price
+$300
Extra days
+2 days
The client sees three buttons
01how it works
Four artefacts, in order, and not one of them is a meeting.
Step 1
The client asks
The message arrives in the thread you already use. You paste it in. That is the only input.
The message · 14:31
also — can you do the French version of the landing page before we launch? shouldn't be much extra
Copied out, pasted in.
Step 2
The change order comes back
Title, scope split into Includes and Does not include, a price from your stored rate, extra days. Correct any number.
Drafted in 4 seconds
Add French landing page
- 6 sections, /fr route, one round of corrections
- Blog and help pages
Price
+$300
Extra days
+2 days
Step 3
You send one link
Copy the written message and paste it back into the same thread. The request came from there.
Approval link
onetap.app/c/4F2A9
“Here is the change order for the French landing page. You can approve or ask for changes here.”
Copy messageStep 4
The client taps Approve
Name, time, scope version and price are captured. Both parties hold the signed Record as a PDF.
Record
ApprovedApproved by Marie Lefèvre
24 Aug 2026, 16:07 UTC · v1 · CO-4F2A9
Price
+$300
Extra days
+2 days
Step 3 is not automated on purpose. The request arrived in a thread, so the answer belongs in the same thread.
02why the extra is never charged
Writing it down costs more than the extra is worth.
A $300 addition does not survive a proposal tool. Rebuild the document, re-read the terms, then ask the client to enter a platform they never agreed to use.
So you say yes in two seconds, because saying yes takes two seconds. Weeks later the work is delivered, the date has moved, and nobody remembers the extra was extra.
onetap is deliberately small. One paste, one link, one tap. It fits inside the fifteen seconds where the margin is actually decided.
The tool that wins today is not Bonsai or PandaDoc. It is a verbal “sure, no problem”.
03on the record
Every extra you sent, and exactly what the client answered.
History keeps one line per change order, per client, with the price, the days and the outcome. A documented no is worth more than an undocumented yes.
Example History. Exportable as CSV or PDF, and it stays yours.
04what onetap will not do
The restraint is the product.
01
Ask the client for an account
The client opens a link, reads the scope and decides on their phone. No password, no install, no login.
02
Become your project tool
Keep the tools you already run your work in. onetap does one thing and points at all of them.
03
Touch the money
The pay button on the Record goes to your own payment link. The card never touches onetap.
04
Act like a contract
Nobody redlines a $300 addition. This is the button that says yes to an extra, small enough to get used.
05
Lock up your records
When a pass ends the account returns to Free. Every change order, Record and export stays open to you.
06
Perform enthusiasm
No confetti, no badges, no streaks. A change order is a document with a date on it, and it reads like one.
05pricing
Three approvals a month are free, forever.
Free
$0
Forever
- 3 approvals per calendar month
- The full product, not a trial
- onetap named in the approval page footer
Solo
$9
30-day pass
- Unlimited approvals and clients
- Record export as PDF
- Your own payment link on every approval
- No onetap footer
Studio
$29
30-day pass
- Everything in Solo
- Up to 10 team seats
- Shared client History
- Per-client reports and your logo
Prices in USD. A pass runs 30 days and does not renew by itself. When it ends the account returns to Free and every Record stays available.
06next
The next time a client asks for one more thing.
onetap opens soon, in English, French and Spanish. There is nothing to sign up for yet — keep the link and come back.