01
Pull in the details
Choose someone from your phone's contacts, then look up and verify the service and business addresses.
THE APP THAT ALSO GETS THE TAX RIGHT
AND EXPLAINS ITSELF
Send
the bill.
Get
paid.
Pronto.
Estimates and invoices are the easy part. ProntoBill also gets your tax right, explains the confusing parts in plain English or Spanish, and keeps you ahead of state deadlines—automatically.
INVOICE
INV-1042
Exterior painting
1,250 sq ft × $2.50$3,125.00
1,250 sq ft × $2.50$3,125.00
? Do I charge sales tax on this?
No—they're a general contractor with a reseller permit on file, so this is wholesale.EN · ES
TOTAL$3,125.00
Pay securely →
✓ Payment received
$3,125.00 from Acme Co.
$3,125.00 from Acme Co.
✓ Write offline
✓ Core billing works fully offline
✓ Your data stays yours
LOCAL-FIRST BY DESIGN
Keep working when the internet doesn't.
Write estimates and invoices without a connection—your details, pricing, and documents stay on your device.
Looking up a fresh tax rate, sending a document, or taking a payment needs a connection; a rate you've already looked up keeps working offline. Your records are never locked behind our servers.
✓ Write offline
Tax lookup, sending & payments need a connection
Tax lookup, sending & payments need a connection
HOW IT WORKS
From work done to money in the bank.
Three simple steps. That's it. Because billing shouldn't be a second job.
02
Price it accurately
Calculate square footage right in the app. A tax rate you've already looked up applies offline too—a new one needs a connection.
03
Send and get paid
Move from estimate to deposit to invoice, share it your way, and offer flexible Stripe payments.
NOT JUST ANOTHER INVOICING APP
Most invoicing apps stop at the invoice.
ProntoBill also handles the parts that actually slow contractors down: figuring out what to bill, getting the tax right, and staying ready for the state. All of it comes standard, not as an upsell.
An assistant that turns one sentence into an invoice.
“Finished the Johnson job, $3,800 plus tax, they owe 30% now.” Say what happened and ProntoBill matches the customer, looks up the tax, and builds the draft—ready to review and send.
The assistant only ever repeats back what you said. Every dollar amount is still calculated by ProntoBill itself, on your device—never guessed by AI.
The right rate on every invoice, and a heads-up before you owe the state.
ProntoBill looks up the real tax rate for the job's service address automatically, so the number on the invoice is right the first time.
Billing a general contractor who's handed you a reseller permit? That's wholesale, not retail—ProntoBill knows the difference, so you're not quietly covering someone else's sales tax out of your own price.
It also tracks your filing obligations on the side, so a due date never catches you between jobs.
A short, honest answer sits next to anything that could trip you up.
Sales tax, deposits, overdue invoices, subcontractor rules—the confusing parts get a collapsed “?” that expands right where the question comes up, so you're never guessing what a button actually does.
Every one of those answers is written in English and Spanish from the start, not bolted on later.
Local-first means you're never locked out of your own business.
Estimates, deposits, and invoices live on your device first—no connection required to keep working.
Your records go with you, and nothing about your business stays locked in.
AND EVERYTHING ELSE, HANDLED
From details to paid. All in one flow.
ProntoBill turns the information already on your phone into an accurate, ready-to-send document—without a separate database or project system to maintain.
ProntoBill
ESTIMATE EST-1042
1,250 sq ft
✓ Service address verified
Subtotal$3,805.00
Tax$304.40
Total$4,109.40
✓ Local-first, offline to write
Create estimates, deposits, and invoices without a connection. A fresh tax lookup, sending, or a payment needs one; your data is never locked behind our servers.
✓ Use your phone's contacts
Pull in a name, email address, and phone number only when you need them.
✓ Look up and verify addresses
Confirm service and business addresses before you send.
✓ Built-in square footage math
Calculate square footage right in the app—no separate calculator, no guessing.
✓ Estimates, deposits, and invoices
Keep the full billing flow together from first price to final payment.
✓ Share it your way
Send by email, text, or WhatsApp—or save and copy it anywhere.
✓ Flexible payments with Stripe Connect
Card, Apple Pay, Google Pay, and bank transfer (ACH)—plus, where Stripe approves it for your account, pay over time with Affirm.
✓ Customers approve estimates online
Send a link—they tap Approve or Not right now, no login or app download required, and a decline comes back with their note attached.
✓ Registration & insurance, tracked
Add your entity type, EIN, bond, and insurance once. ProntoBill keeps one list of what's coming up, and can print "Licensed · Bonded · Insured" right on your documents.
✓ Bring your crew
Invite team members with owner, admin, or member roles, so everyone works from the same jobs and records.
✓ Automatic cloud backup
Your business backs itself up and restores on a new phone automatically, with Face ID to keep it locked.
✓ Your own business page
A public page at prontobillapp.com/b/yourbusiness, with your services, service area, and contact info—ready to share.
✓ Home shows what needs you
Overdue invoices, estimates with an answer waiting, and reminders—surfaced, not buried in a list.
✓ Change orders and discounts
Adjust a job after the fact without starting the document over.
✓ Cash, check, Venmo & Zelle
Record any payment in a tap, with an optional card-fee pass-through when customers pay by card.
A CLEANER WORKFLOW
Estimate. Deposit. Invoice. Paid.
Reuse the details you already entered as the work moves forward. No duplicate address book. No separate project tracking. No starting over.
Estimate → Deposit → Invoice → Payment
INVITATION ONLY
Founders Club.
Free through 2026.
Free through 2026
As a thank-you for joining early, 2027 is $99 for the year—you'll always be asked before anything's charged.
- ✓ Estimates, deposits & invoices
- ✓ Address and tax tools, with bilingual explainers
- ✓ Works offline for writing documents
- ✓ Card, Apple Pay, Google Pay, ACH & Affirm (where approved)
ASK THE PERSON WHO INVITED YOU FOR A CODE
ProntoBill is invitation-only while we work directly with a small founding group of contractors. No credit card, no subscription yet—just a code and a real job to try it on.
Request an invite →QUESTIONS, ANSWERED
Good to know.
Do my clients need a ProntoBill account?
No. You share the estimate or invoice by email, text, or WhatsApp—or send them the Stripe payment link directly. They pay without creating an account or downloading anything.
Can I use my own logo and colors?
Add your business logo once and it shows up on every estimate, deposit, and invoice you send, right alongside your business name. Custom color themes for documents aren’t available yet.
What if I do subcontract work for a general contractor?
Mark the customer as a general contractor once, and note whether they've given you a reseller permit. ProntoBill then bills that work as wholesale, not retail, so you're not charging—or quietly absorbing—the wrong sales tax.
How do I accept payments?
Connect a bank account through Stripe Connect—a one-time setup that takes a few minutes. After that, every invoice includes a secure payment link, and customers can pay by card, Apple Pay, Google Pay, bank transfer (ACH), and—where Stripe approves it for your account—Affirm installments. Money goes straight to your account.
Does ProntoBill work in Spanish?
Yes. The explanations built into the app—covering sales tax, deposits, subcontractor rules, and more—are written in English and Spanish from day one, and you can switch the app’s language in Settings.
Do I need to build a customer list?
No separate system. ProntoBill keeps its own saved customers alongside your phone’s Contacts, checks for duplicates, and the picker merges records from both—so you’re never maintaining two lists.
READY WHEN YOU ARE
Request your invite.
ProntoBill is invitation-only right now. Join the Founders Club and we'll text or email you a code personally.