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InvoiceFlow
Invoicing for small businesses, with a paper trail.
Open InvoiceFlowInvoiceFlow is multi-tenant invoicing software for small businesses. It creates invoices, keeps client history and notes, requests signatures, and stores a signed, tamper-evident receipt against every invoice it issues.
It was built for businesses that need an invoice to hold up later: who agreed to what, when, and with what attached. Every record carries its own audit history, and everything in it can be exported in full whenever you want it back.
A look at it

What it does
- Invoice creation
- Client and contact management with history and notes
- Signature requests
- Signed, tamper-evident receipts stored against the invoice
- Full data export
- Sign in by email or with an account you already have
- Full audit history on every record
- Encrypted storage
Who it is for
Small businesses that issue invoices to named clients and need the paperwork to survive a question asked a year later.
Want it walked through?
We will show you the running product, and the people who built it will answer your questions.
