Compare AltaPay vs. NMI Payments

Experience a unified platform for processing payments across e-commerce, physical stores, and mobile applications. With complete visibility into your payment data and associated costs, you can cater to your customers' preferred payment methods seamlessly. The AltaPay payment gateway accommodates a variety of popular international payment options. We handle all aspects of payment processing, data aggregation, and financial reconciliation, allowing your business to grow efficiently without limitations. Enhance the shopping experience for customers on any device and in any market to maximize your conversion rates. With a reliable, user-friendly, and localized payment solution, AltaPay captures both online and in-store payment information, ensuring automatic reconciliation and comprehensive transparency regarding expenses and settlements. The AltaPay payment gateway is compatible with all major integration formats, empowering you to maintain full control over the payment process, customize the checkout experience, and conduct A/B testing as needed. This flexibility allows businesses to adapt to evolving market dynamics while optimizing their payment strategies.

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