G2 Vendor Directory

NMI Gateway vs. Shift Payment

A side-by-side comparison based on G2 review data.

MetricNMI Gateway

by NMI

Shift Payment

by Shift4

Overall rating4.63.2
Review count10823
Ease of use9.57.0
Ease of setup9.46.8
Quality of support9.36.5
Meets requirements9.56.7
NPS81.30841113.636364
Small Business87.9%65.2%
Mid-Market11.2%34.8%
Enterprise0.9%0.0%
Total page views492494
Total LLM citations4,1011,671

NMI Gateway

NMI Gateway is a white-label, omnichannel payment platform built for software providers, ISOs, and financial institutions that want to deliver secure, scalable, and customizable payment acceptance to their merchants and clients. NMI Gateway supports multi-channel commerce—including online, in-store, mobile, and unattended environments—while integrating with a broad ecosystem of processors, shopping carts, and business platforms. NMI does not sell directly to merchants. Instead, it powers over 4,000 partners who serve more than 1 million merchants worldwide.

Pros

  • Ease of Use
  • Customer Support
  • Security
  • User Interface
  • Features
  • Setup Ease

Shift Payment

Shift4 (NYSE: FOUR) is boldly redefining commerce by simplifying complex payments ecosystems across the world. As the leader in commerce-enabling technology, Shift4 powers billions of transactions annually for hundreds of thousands of businesses in virtually every industry.

Pros

  • Affordable