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Top Rated Billing and Invoicing Software with Api - Page 11

Last updated: July 2026

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621 software options

ClicFacture logo

Quick and easy invoicing!

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ClicFacture is an online invoicing software for small businesses. With ClicFacture, save time to focus on the essentials: your job!

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Unbox ERP logo

The lead solution in Training, Consulting and 24/7 Support.

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Unbox ERR & CRM Solutions is a cloud based service helping to streamline all aspects of your business including Invoicing, Inventory Management, Project Management, Third-party management with over 20 modules available. See customer trends and patterns within one centralized platform.

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teamspace logo

All-in-one business software for service providers

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Small and medium-sized service providers use teamspace to digitize their business processes. It offers a CRM system, time tracking, project management, offer-to-cash, finance, personnel and HR features, an issue-tracking system, and many teamwork tools such as chat, forum, and wiki.

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Visma Severa logo

PSA software combining CRM, project management and invoicing

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With Visma Severe Project Management software you can handle individual projects. Be it sales or billing or even your entire project portfolio. Visma Severa’s PSA software adapts perfectly to your existing workflow to provides the information you need with integrated CRM, project management, resourcing, time tracking and invoicing. Available to the software are industry standard compatibilities with third-party systems and customization services.

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RevCent logo

Subscription billing, trial offers and usage based billing

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RevCent is a cloud-based platform designed to manage products, transactions, subscription billing, usage based billing, shipping, and more. It enables professionals to filter and view the customer database and filter by specific campaigns, date range, status, products, metadata, and AdWords.

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Paycosmos logo

Payment processing software for digital transactions

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paycosmos is a payment processing software designed to help businesses manage digital transactions in compliance with payment card industry (PCI) standards. Using the instant merchant settlement (IMS) module, customers can process payments via virtual and point-of-sale (POS) terminals.

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Sage One logo

Helps small businesses manage billing.

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Sage One is an online invoicing program that is simple, fast and easy to use. Sage One allows you to issue invoices with QR codes and ATCUD codes. It helps you track expenses and monitor customers. The software also offers invoice templates, expense tracking, customer management, and integrations with ecommerce platforms.

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SmartPOS logo

Point of Sale (POS) system for retailers

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SmartPOS is a cloud-based and on-premise point of sale (POS) solution designed to help retailers, pharmacies, and textile businesses of all sizes manage sales orders, customers, and back-office operations. Key features include stock control, contact management, auditing, and multi-payment modes.

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OS/ logo

Cloud-based project accounting software for businesses

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OS/ is a cloud-based project accounting software designed for agencies, productions, and studios that helps manage finances, generate quotes, control projects, and more.

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Emersion logo

Business automation software for managing billing & payments

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Emersion is a business automation software designed to help businesses streamline billing, customer engagement, and payment processing operations via a unified platform. The application allows employees to automate recurring tasks, configure workflows, and display billing history and company logos on invoices.

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Good Sign logo

Revenue monetization & management software

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Good Sign is a cloud-based revenue monetization solution for companies of all sizes. It offers users an effective billing system and more than one type of pricing structure.

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Signulu logo

Cloud-based electronic signature solution.

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Signulu is a cloud-based electronic signature solution that helps businesses streamline the process of signing documents and contracts on a centralized interface. The platform provides identity verification capabilities using artificial intelligence (AI) so users can ensure the authenticity of the signer and prevent any potential fraud. Signulu also offers document storage options, audit trails, and custom workflow options.

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NG Billing by Objective logo

Brazilian CRM & Billing Solution

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NG Billing is a Brazilian CRM & Billing solution that favors the growth of the recurring billing operation, with greater process automation, governance and compliance.

The multi-currency solution integrates with several ERPs, different payment gateways and financial institutions.

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BizMaster logo

Computer repair shop

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BizMaster is a SaaS application that helps repair businesses manage their store and employees. It has features including job management, repairing status tracking, billing & accounting and online Service booking website.

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SMART Suite logo

An Embedded Payment Portal Like No Other.

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SMART Suite powered by Transcard offers an all-in-one payment processing solution. With SMART Suite, businesses can manage insights, process payments, and onboard all in one place.

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PDF Xpansion SDK logo

Tools for implementing PDF, PDF/A & eInvoicing functionality

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The PDF Xpansion SDK is a set of developer tools for implementing PDF, PDF/A & eInvoicing functionality into applications.

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Qive logo

Financial and tax management for companies!

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Financial and tax management for companies. Arquivei captures and monitor tax documents, integrating to ERPs to assure tax precision and compliance. It connects supply departments to payments, taxes, data analysis and task automation, eliminating errors and reducing costs.

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Milient logo

Perfect Project Flow

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Milient is a cloud-based project management solution that helps users with time recording, resource planning, quality assurance, and invoicing processes from a unified platform.

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Abtrac logo

All-in-One Project Management for AEC & Professional Service

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Abtrac simplifies billing for professional services and AEC firms. Create accurate invoices from timesheets, costs, and quotes, with flexible formats and fast, automated or manual options.

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ELO ECM Suite logo

Digitalizes information management and business processes

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Software for digital document management and automated business processes – powered by AI, quick and easy to customize thanks to low-code technology, in the cloud or on-premises.

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Karanext logo

Karanext, a French ERP platform designed for service firms.

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Karanext is a complete suite in SaaS mode - ERP, CRM & HR - designed for SMEs that want to improve the management of their business. Our solution is particularly suitable for service companies such as consulting firms or engineering.

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Sirenum Staff Management Platform logo

Cloud-based software for streamlining staff management

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The staffing industry's best invoicing tool, flexible enough for all your needs. Your branding. Your rates. Your sites. Your staff. Your clients.

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CreditorWatch Collect logo

Automate accounts receivable and get paid faster.

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Say goodbye to mundane tasks, deliver a better customer experience, get invoices paid faster and save hours.

Debtor Daddy integrates with accounting systems and ERPs like Xero, MYOB, Quickbooks Online. Sign-up to a no strings free trial to see how much more effective your AR process could be.

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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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UniFi logo

UniFi — One system, limitless use cases.

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UniFi is one platform with limitless use cases across every department. With limitless use cases, innovative features, and the ability for end users to create bespoke apps without coding knowledge, UniFi is the one system that does it all.

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