Compare Plug'n Pay vs. Shift4

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

Revaly helps subscription and recurring-revenue businesses stop losing money to failed transactions by transforming payment systems into revenue engines. Its AI-driven payment intelligence evaluates issuer signals and network behavior in real time to keep legitimate payments from failing. Instead of letting small errors or timing issues derail a customer’s purchase, Revaly corrects problems proactively before the user hits “pay.” When a payment does decline, the platform automatically determines the best moment and method to retry, using behavioral science to protect customer trust. Companies using Revaly see major increases in recovered revenue, improved profitability, and significantly reduced involuntary churn. The platform integrates with more than 100 billing, CRM, and payment tools, eliminating the need for operational changes. Performance metrics across retail, software, and media industries consistently show double-digit recovery improvements. Ultimately, Revaly gives businesses a predictable, scalable way to grow by ensuring their earned revenue successfully processes.

Advantage is a superior subscription management system that allows you to order products and services with total flexibility. Flexibility allows you to run your business efficiently in the way that you want. You need a market-responsive order-to-cash solution to keep up with the increasing consumer preference for subscription and membership models.

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.

PayKings is a payment processing provider specializing in merchant account solutions for high-risk industries that often face challenges obtaining traditional payment services. The company offers a streamlined approval process powered by automated underwriting, allowing many businesses to gain access to payment processing capabilities within a short timeframe. Businesses can leverage merchant accounts, payment gateways, ACH processing, credit card processing, recurring billing, and virtual terminal solutions through a single provider. PayKings serves a broad range of industries, including adult entertainment, CBD, online gaming, firearms, debt settlement, travel, nutraceuticals, cryptocurrency, and other specialized markets. Fraud prevention tools and chargeback management services help businesses reduce risk while maintaining smooth transaction processing. The platform supports integration with leading gateways, eCommerce platforms, content management systems, and custom APIs. Dedicated account managers provide guidance throughout onboarding and ongoing operations, ensuring merchants receive industry-specific support. Transparent interchange-plus pricing models help businesses understand processing costs without hidden fees or long-term contractual commitments. PayKings enables high-risk businesses to access reliable payment infrastructure while supporting growth and operational stability.

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

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.

eMembership is a cloud union management platform from Winmill Software, designed from the ground up for labor unions rather than adapted from a generic CRM. Its data model reflects how unions actually work: members tied to employers, contracts, and dues classifications, with remittance arriving from multiple employers at once. Winmill owns and operates the physical infrastructure behind eMembership instead of renting capacity from a public cloud provider. The equipment sits in a colocation facility that holds SOC 1 and SOC 2 audit reports and ISO 27001 certification, and Winmill maintains HIPAA Security Rule and PCI DSS compliance for the eMembership environment. Data is encrypted in transit and at rest. Unions connect eMembership to the tools they already use through an open REST API and prebuilt integrations with QuickBooks, Great Plains, Mailchimp, SendGrid, Twilio, Stripe, PayPal, DocuSign, and others. Staff work in a web application, while members use a native iOS and Android app or a web portal that reads and writes the same database in real time. Functionality is split into 18 modules, so a union licenses only what it needs and adds more later. Two releases ship each year as part of the subscription. Pricing is set by module, never by seat or member count. Winmill has been building software since 1994 and launched eMembership in 2008. Today, 55+ labor unions across North America rely on it.

Compete Member Management Software by Jonas Fitness is club management software designed for gyms, fitness clubs, health clubs, medical fitness centers, and hospital wellness facilities that need a stronger operational foundation. Compete combines membership management, billing and invoicing, contract management, member check-in, attendance tracking, scheduling, reporting, and front desk workflows in one configurable system built for real-world club operations. Compete is a strong fit for multi-location fitness businesses, larger independent clubs, and wellness organizations with layered services, varied membership structures, and more demanding day-to-day workflows. Facilities can manage memberships, services, classes, instructors, and other operational moving parts while maintaining the flexibility to support how their business actually runs. Jonas Fitness takes an open ecosystem approach, allowing customers to connect the software they need for online joining, member messaging, mobile app experiences, payments, and other integrated workflows. That makes Compete a practical choice for operators who want club management software that can adapt to their business instead of forcing them into a rigid one-size-fits-all model. For buyers comparing gym management software, membership management software, health club software, medical fitness software, or hospital wellness software, Compete stands out for configurability, operational depth, and fit for organizations with more complexity than lightweight gym software can handle.

Odoo is an open-source, fully customizable and extensible software that includes hundreds of professionally designed business applications. Odoo's intuitive database can meet most business needs including CRM, Sales, Projects, Manufacturing, Inventory, Accounting, and Accounting. Odoo is a software solution that can be used to meet all company needs, regardless of size or budget. Odoo's seamless design makes it easy for businesses to become more efficient and save time. Each module is interconnected to offer a seamless experience from one app to the next. Users can automate many tasks that would otherwise require manual inputs to multiple applications. Odoo enables teams to collaborate with each other from one platform, allowing them to keep all business functions in one place.