Compare Basis Theory vs. CORE

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.

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

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

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.

Securden Password Vault is an enterprise-grade password management solution that allows you to securely store, organize, share, manage, and keep track of all human and machine identities. With a sleek access management system, Securden lets your IT teams share administrator credentials and effectively automate the management of privileged accounts in your organization. Securden seamlessly integrates with industry solutions like SIEM, SAML-based SSO, AD, and Azure AD among others to provide a smooth deployment in any organization. With Securden, organizations can rest easy as all their sensitive data is protected with strong encryption methods and supported by a robust high availability setup. Securden offers drilled-down granular access controls that allow users to grant access to accounts without revealing the underlying credentials in a just-in-time fashion. Securden Password Vault can be deployed both on-premise for self-hosting and on the cloud (SaaS).

KonstructIQ is an innovative platform that integrates artificial intelligence to serve the needs of residential general contractors, remodeling companies, and home builders by streamlining both construction and financial management. This comprehensive tool covers the entire project lifecycle, encompassing fast and professional estimates, budgeting, invoicing, payment processing, change-order management, cost tracking, subcontractor coordination, and real-time reporting, all within a unified interface. Its estimating feature allows contractors to create precise bids swiftly, utilizing customizable cost codes and the ability to calculate markups or margins, as well as accommodating both cost-plus and fixed-price pricing models. Upon approval of an estimate, it transforms into the project budget, ensuring that every bill, invoice, or change order automatically reflects on the budget, enabling contractors to maintain precise job costing and oversight of profitability. Additionally, the platform facilitates payments to subcontractors or suppliers, supporting various methods such as ACH transactions, checks, debit and credit cards, virtual cards, or Zelle, while also enabling clients to pay invoices directly through a user-friendly portal, which accelerates cash flow significantly. This holistic approach not only simplifies administrative tasks but also enhances financial transparency for contractors, ultimately contributing to more efficient project completion.

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.

Proton Pass for Business is a privacy-first password and identity manager that helps organizations secure access at scale without sacrificing usability. Built with end-to-end encryption and a strict zero-knowledge architecture, it ensures that passwords, passkeys, secure notes, and payment details remain accessible only to authorized users within your team. Not even Proton can view your data. Teams can securely create, store, and share credentials via encrypted vaults, enabling safe and efficient collaboration. Granular admin controls allow IT managers to oversee permissions, enforce strong password policies, monitor access, and manage users throughout the employee lifecycle from onboarding to offboarding. Built-in password generation, autofill, and cross-device syncing streamline everyday workflows while maintaining high security standards. Proton Pass for Business also includes advanced features such as email alias integration to protect employee identities, dark web monitoring to detect compromised credentials, and detailed activity logs for visibility and compliance. Its open-source foundation promotes transparency and trust, and independent audits reinforce its security model. Hosted in Switzerland and protected by strong privacy laws, Proton Pass offers organizations a secure alternative to traditional password managers. With seamless browser extensions, an intuitive design, and enterprise-ready controls, it empowers teams to reduce credential-related risks, prevent unauthorized access, and improve productivity, all within a secure, encrypted environment.

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.

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