Compare Atoa vs. Merchant One

Accept all payments quickly, securely, and easily. Accept card payments quickly and easily, no matter where you are selling. You can streamline the process of creating, sending, and tracking your invoices. Customer not available in person? Remote credit card payments can be made over the phone or via your computer. Get paid quickly Square makes it easy to create and grow an online store and accept online payments seamlessly with Square. Accepting cards is as easy, painless, secure, and fast as possible with Square. We don't charge extra, have no long-term contracts and are not able to use tricks. You can rely on fast, secure payments.

Square POS is a simple, intuitive point-of sale (POS) solution. It provides a rich set of tools for inventory tracking, sales tracking, online payment processing and digital receipts. Square POS is available for Android and iOS devices. It records transactions offline by storing data locally, then automatically syncing information when there is an Internet connection. Square POS allows users to manage details such as names, prices and quantities. It also offers features such as a barcode scanner and discounts, credit card processing and gift cards, refunds and more.

Melio is an accounts payable platform designed to simplify bill payments, improve workflows, and maximize cash flow efficiency for businesses of all sizes. To get started, try all of Melio's features free for 30 days! You can pay vendors online using bank transfers or credit/debit cards—even if they only accept checks—while Melio takes care of the manual tasks. Integrate seamlessly with QuickBooks and Xero to keep your accounting up-to-date. Melio allows you to pay through bank transfer or card, helping you extend your cash flow and gain rewards. Enter vendor or bill details manually, upload, or snap a photo of the invoice—it’s that simple. Schedule payments according to your cash flow plan and let Melio manage them. Additionally, you can pay international vendors in their local currency for services and products. On-the-go? No problem, just get the Melio mobile app on iOS or Android to manage your payments, process approvals, and much more no matter where your business day takes you.

EBizCharge is the leading embedded payments application for businesses to accept payments directly inside QuickBooks, Microsoft Dynamics, NetSuite, SAP, Acumatica, and 100+ other business systems. Trusted by 20,000 companies, EBizCharge combines modern billing tools with integrated payment processing to help B2B companies get invoices paid faster, eliminate manual work, and keep payment data automatically synced to their ERP. Companies use EBizCharge to: ◉ Accept credit card, debit card, and ACH payments natively inside ERP, CRM, or eCommerce platforms ◉ Speed up collections with easy billing tools: payment links, online customer portal, recurring billing, saved cards, and more ◉ Improve security and reduce risk with PCI-compliance, encryption, tokenization, fraud protection, and certified by the PCI-Security Council ⎯ HOW IT WORKS IN YOUR ERP, CRM, & E-COMMERCE PLATFORMS EBizCharge integrates natively with your ERP, CRM, or e-commerce platform through certified software connections, so payments work directly inside the system you already use. ⎯ FEATURES • Email payment links • Recurring billing • Secure online customer payment portal • Securely save cards • EMV terminals • Mobile payments • Ability to surcharge • Dedicated in-house support

NMI Payments gives developers, SaaS builders, ISVs and ISOs a simple path to embedded payments. As a full-stack processor, acquirer, and technology partner, NMI enables you to integrate, brand, and manage payment acceptance within your platform—without becoming a PayFac or building complex infrastructure. The platform combines flexibility, scalability, and speed, offering white-labeled payments infrastructure that keeps your brand front and center. With omnichannel support for in-store, online, in-app, and unattended payments, you can deliver a consistent merchant experience across every touchpoint. NMI also manages onboarding, compliance, and risk, freeing your team to focus on innovation and customer growth. Developer-First Experience NMI’s developer-first environment puts full control in your hands. Build, test, and launch payments in a modern sandbox with clear documentation and ready-to-use code snippets. Guided onboarding flows and API recipes simplify integration, while low-code and no-code tools accelerate deployment. Business users can evaluate monetization options with instant revenue calculators and self-service sign-up. Whether you’re embedding payments for the first time or scaling across channels, NMI helps you go live faster, stay compliant, and grow with confidence

Wallester is an Estonian-licensed financial institution and has been an official Visa partner since 2018, specialising in innovative digital financial solutions and card issuance. We empower companies across the European Economic Area (EEA) and the UK to streamline payments, launch branded cards, and scale efficiently. What we do: 1. White-Label Solution with Embedded Finance Our White-Label solution enables businesses to integrate financial services directly into their platforms - a concept known as embedded finance. This allows companies to launch branded payment cards tailored to their specific needs, enhancing customer experiences and opening new revenue streams. We ensure a swift time-to-market with simplified integration and dedicated support from our implementation team. 2. Wallester Business: Corporate Expense Management Wallester Business is designed to modernise corporate expense management. It provides companies with instant access to virtual and physical Visa cards, streamlining financial processes through a modern app and comprehensive portal. Features include expense tracking, budget analytics, and seamless integration with accounting systems to enhance financial oversight and efficiency. With a diverse team of over 190 professionals located in Estonia, Latvia, France and the United Kingdom, we are dedicated to developing high-quality, profitable products for our clients. Our passion for innovation drives us to improve and adapt to the evolving financial landscape continuously. We aim to elevate businesses by providing the most advanced financial technologies, enabling them to reach new heights in efficiency and growth. We are always open to collaboration and eager to assist companies in navigating the future of finance.

FISPAN is a leader in embedded ERP banking, connecting financial institutions directly to the ERP and accounting systems businesses rely on every day. By embedding secure banking functionality inside NetSuite, Sage Intacct, Microsoft Dynamics 365 Business Central, Workday, QuickBooks, and Xero, FISPAN eliminates manual file uploads and disconnected workflows. Automate accounts payable, streamline accounts receivable, enable reliable bank feeds, initiate payments, manage expense reimbursements, and access near real-time cash visibility, all within your ERP. FISPAN’s secure API connectivity ensures accurate transaction data flows directly into your reconciliation module, reducing errors, improving efficiency, and enhancing financial control. Designed for banks, businesses, and ERP partners, FISPAN transforms ERP systems into fully connected financial command centers.

Convesio gives commerce businesses the edge they need to grow faster — combining ultra-reliable WordPress hosting with seamless, built-in payment processing. At the heart of it all is ConvesioPay, a powerful payments platform that integrates directly with your hosting stack. No clunky plugins. No middlemen. Just faster, more secure transactions that help you convert and scale without friction. With auto-scaling containers, PCI-compliant infrastructure, and real-time revenue insights, Convesio removes the bottlenecks that slow down online stores. It’s performance, payments, and peace of mind — all in one place. Highlights: Integrated payments through ConvesioPay Built for WooCommerce and high-traffic stores Enterprise-grade uptime and scalability Security-first, PCI-compliant environment Real-time performance and revenue visibility

Regpack is an online onboarding, registration, and payments software used by thousands of organizations worldwide. Regpack works with a variety of businesses to automate their onboarding process, collect client information, and charge automatically for their services. Whether you're organizing an event, managing client billing, organizing a trip or camp, or offering courses and classes (virtual too!), Regpack can help you make your registration and payment processes a breeze with its unique technology and comprehensive set of features. Top features include recurring billing, payment plans, automated payment collection, custom form builder, built-in email tools, dynamic reporting, and more.

WEX FSM is an innovative cloud-based platform designed to enhance every facet of a contractor's operations, encompassing everything from scheduling and dispatch to invoicing, payments, reporting, and customer management. By integrating various workflow tasks, it allows technicians, office personnel, and clients to function within a unified system that features real-time location tracking, intuitive drag-and-drop scheduling, optimized routing for dispatch, and comprehensive customer history, which includes job details, equipment data, notes, and photos. The platform also facilitates the creation of quotes and proposals, management of pricing books, and provides immediate mobile invoicing and payment solutions. With capabilities for supporting recurring service plans, offering flexible financing options, and incorporating integrated payment processing, WEX FSM accelerates cash flow by minimizing delays associated with invoicing and collections. Furthermore, it offers seamless connectivity to accounting software like QuickBooks, extensive reporting and analytics tools for valuable business insights, and a dedicated mobile application that empowers field technicians to efficiently manage their tasks and receive payments on-site. This combination of features ensures that contractors can operate more efficiently and effectively in a competitive market.