No moat. Still in business.

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Tracks billable hours for agencies and freelancers, then builds invoices that clients can pay by card.

Since 2011

Free trial · Invoicing and billing · Agencies

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Web app for freelancers and small firms to make invoices from templates, send them and track which get paid.

Since 2012

Free plan · Invoicing and billing · Trades and home services

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Open-source billing engine that meters usage, runs subscription and hybrid plans, and issues invoices for software firms.

Since 2021

Free · Invoicing and billing · Software companies

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Self-hosted app to send invoices and estimates, record expenses and payments, and give clients a portal to pay.

Free · Invoicing and billing

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WooCommerce add-ons that create Taiwanese electronic invoices through ECPay, ezPay, Amego or SmilePay.

Subscription · Invoicing and billing · Online sellers

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Invoicing app for freelancers and small firms to send invoices and estimates, log expenses and take card payments

Invoicing and billing · Agencies

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Free billing and client management app for web hosting companies, with automatic invoices, account provisioning and domain handling.

Free · Invoicing and billing · Software companies

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Invoicing and payments software that small businesses and freelancers can run on their own server, with web and desktop apps.

Free · Invoicing and billing

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Open source platform for running subscription and usage billing plus payment routing on your own servers.

Invoicing and billing · Software companies

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Freelancers make branded invoices, send them as a PDF, a link or by email, and collect card payments through their own Stripe.

Since 2024

Free plan · Invoicing and billing · Freelancers

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Makes invoices and quotes in your browser with PDF export and many currencies, with no account and nothing saved on servers.

Since 2024

Free · Invoicing and billing · Freelancers

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Cloud software for Italian businesses to issue e-invoices to the tax agency, track payments and keep simple books.

Subscription · Invoicing and billing · Accountants and bookkeepers

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Gives your Stripe customers a link to create, edit and download their own invoices, avoiding the Stripe invoice fee.

Since 2024

One-off payment · Invoicing and billing · Online sellers

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An AI assistant that categorises bank transactions, keeps the ledger, makes reports and sends invoices for small businesses.

Free trial · Invoicing and billing

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Order forms that take payments, issue invoices and deliver digital products or memberships for Czech online sellers.

Invoicing and billing · Online sellers

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Phone app that collects recurring client payments on a weekly or monthly schedule and sends reminder invoices, for teachers and freelancers.

Pay as you go · Invoicing and billing · Freelancers

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WordPress plugin for making invoices and quotes as PDFs and taking payment through Stripe or PayPal.

Free plan · Invoicing and billing

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Billing software for hosting firms that sells domains, hosting and SSL, sets up services and sends the invoices.

Subscription · Invoicing and billing · Software companies

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Turns WooCommerce orders into Italian electronic invoices and receipts in Fatture in Cloud and sends them to SDI.

Free plan · Invoicing and billing · Online sellers

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Free self-hosted app for small businesses to send quotes and invoices, track client payments and take card payments online.

Free · Invoicing and billing

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Bookkeeping software for small businesses with invoices, expenses, bank reconciliation and financial reports, self-hosted for now.

Free · Invoicing and billing

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Links a WooCommerce shop to Fatture in Cloud to issue Italian e-invoices and sync stock and customers.

Free plan · Invoicing and billing · Online sellers

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Lets contractors price materials and labour, build estimates and send PDF invoices from their phone or the web.

Free plan · Invoicing and billing · Trades and home services

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Turns PDF invoices into checked XRechnung, ZUGFeRD or UBL files, paid per download, for firms needing EU e-invoice formats.

Since 2024

Subscription · Invoicing and billing

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Runs a community-supported farm scheme: member sign-ups, basket deliveries, renewals and automatic invoicing.

Invoicing and billing

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An online fiscal cash register for Serbia that issues tax receipts on its own when a web shop order is paid.

Invoicing and billing · Accountants and bookkeepers

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Free iPhone app for painters and other tradespeople to write bids and invoices without a PC or paper

Free · Invoicing and billing · Trades and home services

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Create, copy and schedule client invoices online, paying for credits once instead of a monthly plan.

Since 2024

Free plan · Invoicing and billing · Freelancers

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Fill in an invoice in the browser, let it total the figures, and download a PDF. One payment, no monthly fee.

Since 2024

One-off payment · Invoicing and billing · Freelancers

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Web invoicing with expense tracking, VAT reports and shop integrations for freelancers and small companies.

Free plan · Invoicing and billing · Online sellers

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Captures field tickets, crew time and job costs on site and turns approved tickets into invoices for energy and construction firms.

Invoicing and billing · Trades and home services

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An API that lets developers create branded PDF invoices with sales tax or VAT and add payment links from their own apps.

Since 2024

Free plan · Invoicing and billing · Developers

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Track billable hours by client and project, approve timesheets and turn the time into invoices for freelancers and small teams.

Subscription · Invoicing and billing · Agencies

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A free WordPress plugin for taking one-off and recurring payments through buy buttons, payment forms and invoices.

Free plan · Invoicing and billing

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Fill in a form in the browser to make and download PDF invoices from several templates, aimed at freelancers and small firms.

Since 2025

Free · Invoicing and billing · Freelancers

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Builds construction estimates and invoices on iPhone, iPad or Mac, with optional local cost data and QuickBooks sync.

Subscription · Invoicing and billing · Trades and home services

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Lets trade businesses schedule jobs, manage their crew, send estimates and invoices, and take payment.

Free trial · Invoicing and billing · Trades and home services

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Phone and web app for freelancers and small firms to send invoices and quotes, take payments and chase late bills.

Subscription · Invoicing and billing · Trades and home services

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Meters usage, tracks costs per customer and bills users with credits or usage pricing, for teams building AI apps.

Since 2026

Pay as you go · Invoicing and billing · Developers

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Fill in client and job lines in the browser or on iPhone and get a finished invoice PDF, for tradespeople and freelancers.

Free plan · Invoicing and billing · Trades and home services

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Invoices, receipt scanning and payment tracking for tradespeople, with an AI assistant for billing tasks

Invoicing and billing · Trades and home services

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Generates Indian GST tax invoices for each online order, with HSN codes, GSTIN capture and the right CGST, SGST or IGST split.

Subscription · Invoicing and billing · Online sellers

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Fills templates with data to produce PDFs, images and validated ZUGFeRD electronic invoices, from code, AI agents or no code tools.

Free plan · Invoicing and billing · Developers

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Assistant for solo business owners that drafts proposals and estimates, sends invoices and follows up until paid.

Since 2025

Free trial · Invoicing and billing · Freelancers

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A hosted LLM gateway that meters usage, caps spend and gives your customers a branded billing portal, for teams selling AI products.

Since 2026

Invoicing and billing · Developers

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Invoicing for freelancers and small firms: branded invoices and quotes, online payment links and automatic reminders.

Free plan · Invoicing and billing

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Contractors and home service pros use it to send estimates and invoices, take online payments and track clients.

Subscription · Invoicing and billing · Trades and home services

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A WordPress plugin that lets businesses send estimates and invoices and take client payments from their own site.

Invoicing and billing · Agencies