Invoice AI: Estimate & Receipt

Invoice AI makes an estimate, an invoice or a receipt on your phone in a minute. Fill in who it is for and what you sell — the total, discount and tax are counted for you. Tap Done and you have a clean PDF without a watermark: share it in any messenger, send it by email, print it or save it. No account, no ads and no internet permission at all.

ESTIMATE → INVOICE → RECEIPT

Estimate: an offer the client signs. Valid for 14, 30 or 60 days, a line for the client's signature, and statuses accepted, declined and expired.
Invoice: one tap turns an accepted estimate into an invoice with the same items. The amount due and the due date are printed large at the top.
Receipt: mark the invoice paid — bank transfer, card, cash — and send a receipt together with the invoice, two PDFs at once.

WHAT IS INSIDE

Items with units (pcs, h, m², kg — anything), quantity × price, discount in % or as an amount.
Tax by its local name — VAT, GST, USt., TVA, IVA — added on top of prices or already included.
Bill to on several lines: name, address, the client's tax ID. A note on the invoice for payment terms or a VAT exemption line.
Any currency. The one you choose last is used for the next invoice.
All invoices: what you are still waiting for, overdue invoices in red, and Remind sends the client a ready text with the PDF.
Repeat an invoice in one tap. A cancelled invoice goes to Trash and can be restored; its number is never reused, so numbering has no gaps.
Export all invoices to a table (CSV).
Not sure where to start? Tap Show an example: a coffee roaster's invoice or an apartment painting estimate fills every field, so you see what goes where.

FREE, ALWAYS

Invoices, estimates and receipts without limits. PDF without a watermark. Due dates, reminders, trash, CSV. The Strict template and six colors. 22 languages. No ads. No account.

PRO — 7 DAYS FREE ON THE YEARLY PLAN

Pro by the year (7 days free to try, once per Google account), by the month or once forever — cancel anytime in Google Play. Invoices, estimates and receipts stay free with no limit.
• An invoice in 30 seconds with AI — describe the job in words, send the request to ChatGPT, Gemini or any AI app you use, paste the answer: client, items, prices, currency, tax and due date are filled in.
• QR to pay — SEPA (EPC), UPI, PIX, PromptPay or any payment link on the invoice. The client points the camera and pays.
• Signature and stamp — sign with your finger and add your stamp from a photo: the paper turns transparent, the ink keeps its color. They appear on every invoice, estimate and receipt, next to your name.
• A report for your accountant — this month, last month, a quarter or a year: issued, paid, still due and tax by currency, with the list of documents, as a PDF and a table, sent together.
• Branded invoice — your logo, two more templates and your own color.
Inside Pro there is more: the document builder (headings, text blocks, details under an item, your own order), notes for yourself that are never printed, and sending a PDF as a ZIP.

WHO IT IS FOR

A painter pricing a flat by the square meter. A designer billing three drafts. A tutor, a photographer, a small shop, a café selling wholesale.

Privacy: invoices, clients, your signature and stamp are stored only in the app on your phone. The app has no internet permission, so it cannot send anything by itself — a PDF leaves the phone only when you share it.

Taxes and invoice requirements differ by country. Where business-to-business invoices must go through a government e-invoicing system, use the PDF for private clients and estimates.

Languages: English, Russian, German, Turkish, Uzbek, Japanese, Korean, Traditional Chinese, Spanish, Portuguese (Brazil), French, Italian, Indonesian, Vietnamese, Hindi, Polish, Dutch, Czech, Romanian, Ukrainian, Thai and Arabic.