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Stax

Read 20 Stax reviews and testimonials from customers, explore 9 case studies and customer success stories, and watch 1 customer videos to see why companies chose Stax as their Payment Gateway Software

Stax is revolutionizing the payment technology industry by offering a credit card processing model that focuses on powerful payment technology, real human customer support, and simple merchant services. Stax exists to level the playing field for small business to be able to accept credit cards and achieve greater success. Stax is the leading provider of payment technology solutions for businesses across the United States. Their innovative technology supports retail and restaurant locations with physical terminal and POS integrations, online businesses with shopping cart capabilities, professional services businesses with a robust online invoice and billing solution, and on-the-go businesses with a mobile application. Beyond that, Stax's open API allows businesses to create custom payment experiences with all of the benefits of processing with Stax.

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  • 20 Testimonials View
  • 9 Case Studies View
  • 1 Customer Videos View
Customer Rating Review Score based on 1854 reference ratings
4.8/5.0 (1854)
  • Summer 2025 Rising Star Payment Gateway Software

20Testimonials

  • “We love the team, we love the application. I would definitely recommend Fattmerchant as a processing solution. I’m very pleased.”

  • “Fattmerchant is definitely one of the easiest and most straightforward processors I have ever seen. Their technology integrates well with my in-store POS and my online website.”

  • “The technology platform that they have brings a lot more to the table than just a credit card processor. It’s simple, it’s straightforward, it will save you money and it’ll …

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9 Case Studies

  • ‘Shark Tank’ Contestant Reveals Secret to Success Fattmerchant’s Payment App

  • How Digital Gift Cards Generated Revenue for Ambushed Salon During Covid-19

  • How Shelterluv Made the Switch to a Fully Integrated Payments Platform

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1 Customer Videos

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Additional Stax Information & Resources

Read Stax Reviews, Testimonials & Customer References from 20 real Stax customers.

Browse Stax Case Studies, Customer Success Stories, & Customer References from 9 businesses that use Stax.

Watch Stax Customer Videos to learn why 1 businesses chose Stax.