Gefjon Studio
Invoice Once app icon

Invoices and estimates for contractors. No subscription.

Professional invoices and estimates in seconds on your iPhone.

$24.99 once. No subscription, no account, nothing collected.

In review at Apple. Out soon on the App Store.

What’s on it

  1. A1Estimates your customer signs right on your phone
  2. A2One tap turns an approved estimate into an invoice, deposit included
  3. A310 pro PDF templates with your logo and colours
  4. A4Scan-to-pay QR code: PayPal, Venmo, Cash App, Zelle or bank
  5. B1Track full, partial and deposit payments, plus overdue reminders
  6. B2Clients from Contacts, saved items and prices, discounts, 2 taxes, shipping
  7. B3Job photos, PO numbers, job site and your signature on every invoice
  8. B4Send by email, text, WhatsApp, AirDrop or print; export a spreadsheet for your accountant

Inside the sleeve

Invoice Once invoice app home screen with paid and overdue invoicesInvoice and estimate editor with line items, tax and depositCustomer signing an estimate on iPhoneTen professional invoice PDF templates

The price, said plainly

Make unlimited invoices and estimates free, send your first 3 free. Invoice Once Pro $24.99 one time. Competitors charge $9.99 a week (about $519 a year).

Competitor prices from their App Store listings, checked November 2026.

Liner notes: 5 things every contractor invoice needs

  1. Your business details. Name, phone, email and your licence number if your trade needs one.
  2. An invoice number and date. Number invoices in order so you and your accountant can track who has paid.
  3. Itemised labour and materials. Line items with quantities get paid faster than one lump sum.
  4. A clear due date. Due on receipt or due in 14 days. Vague terms get paid last.
  5. How to pay you. PayPal, Venmo, Zelle, Cash App or bank details, or a scan-to-pay QR code on the invoice.

Privacy

Works offline. No sign-up, no servers, no tracking. Your client list stays on your phone.

Made for

Contractors, tradespeople, handymen, cleaners, freelancers, small business owners.

Questions

Is there a monthly fee?

No. Make unlimited invoices and estimates for free and send your first 3 free. Invoice Once Pro unlocks unlimited sending for a single $24.99 payment. No weekly or monthly plan, nothing renews, Family Sharing included.

Can my customer sign an estimate on my phone?

Yes. Hand over your iPhone, the customer signs, and one tap turns the approved estimate into an invoice with the deposit included.

How do customers pay?

Add your PayPal, Venmo, Cash App, Zelle or bank details once. Every invoice shows how to pay with a Scan to pay QR code, and you can record full, partial and deposit payments.

Who is Invoice Once for?

Contractors, handymen, plumbers, electricians, cleaners, landscapers, freelancers and any small business that sends invoices or quotes.

Do I need an account? Where is my data stored?

No account. Everything stays on your iPhone and works offline. No servers, no tracking.

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