FlowInvoice: Invoice & Quotes

Quote the job at the door, get it signed on your phone, and turn it into an invoice PDF before you pack up. Built for plumbers. Works fully offline, no account needed.

FlowInvoice turns the paperwork side of a plumbing job into a two-minute task. Write the quote at the kitchen sink, have the customer sign it on your phone, and send a professional invoice PDF before you leave the driveway. No account, no cloud, no monthly software to learn.

Built for independent plumbers and small plumbing businesses who want billing done on site — not at 10pm at the kitchen table.

QUOTES THAT GET APPROVED ON THE SPOT • Build estimates from labor, parts, materials and call-out fees • Start from a built-in catalog of common plumbing jobs instead of typing from scratch • Capture the customer's name and signature right on your device • Every approval is stored with the date and the exact terms that were agreed • Convert an accepted quote into an invoice in one tap

INVOICES WITH THE DETAIL PLUMBING WORK NEEDS • Separate billing address and service address • Service date, job reference and scope of work • Line items with quantity, unit price, tax and totals • Issue date, due date and status: Draft, Sent, Paid or Overdue • Reusable terms and payment presets so the fine print is always consistent • Private internal notes that never appear on the customer's copy

PROFESSIONAL PDFs • Clean, print-ready invoice and quote PDFs • Your business name and contact details on every document • Send by message, email or any app through the iOS share sheet

KNOW WHERE THE MONEY IS • One dashboard for every invoice and quote • Monthly, yearly or custom date-range earnings charts • Export your records to an Excel-compatible workbook • Deleted documents go to Trash so a mis-tap is never final

WORKS IN THE CRAWLSPACE Everything is stored locally on your iPhone or iPad, so the app is just as fast in a basement with no signal as it is in the van. No sign-up, no password, no waiting on a server. 15 currencies supported.

FREE AND PRO The free plan includes 10 invoices and quotes in total. FlowInvoice Pro unlocks unlimited invoices and quotes, professional PDF branding and priority email support.

FlowInvoice Pro Monthly is an auto-renewing subscription billed once per month. FlowInvoice Pro Annual is an auto-renewing subscription billed once per year. The exact localized price is shown in the app before you purchase.

Payment is charged to your Apple Account when the purchase is confirmed. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the current period ends. You can manage or cancel subscriptions in your App Store account settings.

Requires iPhone or iPad running iOS 15.0 or later.

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