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Billing and Invoicing Software with API (2026) - Page 13

Last updated: April 2026

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600 software options

Progressus logo

Project Accounting Software Built on Dynamics 365 ERP

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Progressus, the first project accounting software built on Dynamics 365 Business Central, offers various features to streamline project management. Key functionalities include a Project Setup Wizard, adaptable task structures, efficient resource management, and the flexibility of customizations.

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Aria Platform logo

Agile monetization platform

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Manage your entire subscriber lifecycle for multiple recurring revenue models, sales channels and products/services – boosting customer loyalty, ousting the competition and driving sales. Get the revenue you deserve by automating accounting, reporting and forecasting with a single capture source for revenue generation activities.

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Simplero logo

All-in-one marketing software

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Simplero is a single software for your website, sales funnels, email marketing, online courses, and membership sites.

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Tolteck logo

Tolteck, the best app for estimating and invoicing software.

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Tolteck will allow you to easily and fastly documents that will be clear and professional. Designed for self-employed persons or small companies, less than 5 employees. No matter the type of trade: general, electricity, plumbing, remodelling, even landscaping! We adapt to all.

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compleet logo

The right employees at the right time

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compleet is a cloud-based human resources (HR) platform that helps companies identify the right employees in the right place at the right time.

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Centime logo

Empowering finance teams with AP & AR automation.

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Powerful cash management solutions alone, even better together. Centime's AP & AR automation helps your finance team accelerate payments, streamline invoices, and achieve pinpoint forecasting accuracy — all seamlessly integrated into one platform.

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HotelFriend logo

Hospitality operations platform for hotel management

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HotelFriend is an all-in-one operations management solution for hotels and vacation properties, with tools for managing bookings, accounting, housekeeping, departments, services, promotions, and more, including communication features and a mobile app for interacting with guests

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Satago logo

Invoicing and overdue payment reminders

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Satago is a credit control software which manages invoices and automates email payment reminders, with access to integrated credit risk data

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Rerun logo

Recurring billing. Simplified.

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Rerun is for any business, organization or association that wants to automate their recurring, subscription or membership billing.

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Selly Erp logo

ERP software for sales and customer relationship management.

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Selly Erp is an integrated business application platform. The main features include customer and contact management, sales management, purchase management, procurement, and electronic invoicing.

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Gaviti logo

A/R automation with zero-fee ACH & seamless customer payment

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Gaviti streamlines the entire invoice-to-cash cycle with AI-powered collections, cash application, credit risk, and disputes. As the only provider with a B2B payment portal offering zero-fee ACH and built-in customer communication, Gaviti accelerates payments and reduces DSO for B2B finance teams.

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Dolibarr logo

Solutions for On-line businesses

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Dolibarr is a business software suite to manage your activity (contacts, invoices, orders, products, stocks, agenda, emailings, and more...).
It's an opensource and free software designed for companies, foundations and freelances.
Available as a Cloud solution on On premise.

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Replicon Time Tracking logo

Cloud-based project time tracking platform

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Replicon Time is a leading cloud-based project time tracking platform that helps mid-market and enterprise organizations manage time, projects, and workforce operations with accuracy and confidence.

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onPhase logo

Accounts payable and document automation platform

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onPhase helps businesses automate back-office accounting processes, customer-facing dashboards and portals. The solution provides tools required to organize and automate all accounting processes.

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Qvalia logo

Cloud-based accounting software for automatic invoicing

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Qvalia is a customizable accounting platform that promotes collaborative workflows and provides users with automation tools to manage daily tasks. Key features include invoice processing, receivable ledgers, performance analytics, credit card processing, online payments, and order management.

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Accelo logo

Transform the way you manage client work

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Easily bill clients and create invoices directly from projects, service issues, contracts, and timesheets. Accelo features automatic time capturing to record the time you spent on projects and tasks, eliminating the need to worry about untracked time, so you know exactly how much to bill clients.

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Zoho Inventory logo

Order and inventory management for growing businesses

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Zoho Inventory streamlines operations for businesses, enabling them to manage their inventory, sales & purchase orders and shipments more effectively.

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PaySimple logo

Payments today. Partners for Tomorrow.

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PaySimple is the leading payments management solution for service-based businesses, powering the cashflow of over 20,000 companies nationwide.

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authorize.net logo

Payment processing across multiple channels

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authorize.net supports payment processing by helping businesses accept credit card and eCheck payments online, in person, via mobile devices, and more. The product offers a range of features, including online payments, mobile point of sale, virtual point of sale, phone payments, eCheck payments, digital invoicing, and fraud protection. It provides account updater and recurring payments capabilities to help businesses manage payments.

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TimeLive logo

Time and Expense Tracking for Project Management

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Billing Rate Setup,
Real Time Analysis,
Tax Option,
Logo and Footers,
Customized Report,
Multi Currency,
Billed/Unbilled,

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Kashoo logo

Small business accounting made easy.

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Kashoo is simple cloud accounting for small business owners who want the control and simplicity of doing their own books. It provides them with the ability to run their business the way they want to, with tools for invoice management, payment processing, reporting, and more.

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Evoliz logo

Online billing management solution

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Online billing management solution that helps businesses manage stocks, invoice generation, orders, suppliers, banking, and accounting.

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UXBI logo

Software UXBI ERP-CRM

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Intuitive and easy to use mobile application. Control your quotes, orders and follow-up to your customers

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FreeAgent logo

FreeAgent has been voted the UK's #1 accounting software.

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New customer offer: 50% off for the first 6 months. Fully customisable HMRC compliant invoices, automatic late payment reminders, online payments.

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vcita logo

Appointment scheduling and reminder solution

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Create and email branded invoices and track your business income with a centralized dashboard. Let clients pay for your services online, accept any credit card.

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