Top 20 Alternatives to Stax in Credit Card Processing Software

Stax (formerly Fattmerchant) is a subscription‑based, all‑in‑one payment processor offering transparent pricing, integrated POS, and robust reporting for merchants. Looking for other credit‑card processing platforms that provide similar features? Below are 20 popular alternatives.

Featured Offers
Top Competitors to Consider
#2 Stripe

Developer‑friendly payment platform with extensive APIs, support for recurring billing, marketplace payments, and global coverage.

#3 Square

All‑in‑one POS and online payment solution with flat‑rate pricing, inventory tools, and a free online store builder.

Widely recognized online payment gateway offering PayPal, Venmo, credit/debit cards, and advanced fraud protection.

PayPal‑owned gateway with seamless mobile SDKs, support for recurring billing, and a transparent fee structure.

Long‑standing gateway providing virtual terminal, recurring billing, and advanced fraud detection tools.

#7 Adyen

Enterprise‑grade global payment platform supporting in‑store, online, and mobile channels with unified reporting.

#8 Helcim

Transparent, subscription‑based processor with integrated POS, e‑commerce plugins, and robust analytics.

Customizable gateway offering flat‑rate and interchange‑plus pricing, plus advanced reporting for high‑volume merchants.

Mission‑driven processor with no‑contract pricing, low rates, and strong support for nonprofits and small businesses.

High‑risk friendly processor with flexible contracts, multi‑currency support, and dedicated account managers.

#12 Clover

POS hardware and software ecosystem offering integrated payments, inventory, and employee management.

Global payment processor delivering omnichannel solutions, advanced fraud tools, and extensive currency support.

#14 BlueSnap

All‑in‑one payment platform with a focus on SaaS, marketplaces, and international payments, featuring a single‑integration API.

International gateway supporting over 200 payment methods, recurring billing, and customizable checkout experiences.

#16 WePay

Integrated payments for platforms and marketplaces, offering embedded checkout, risk management, and instant onboarding.

#17 PaySimple

Simple pricing for small businesses, combining payment processing, invoicing, and recurring billing in one dashboard.

Built‑in payment gateway for Shopify stores, with competitive rates and seamless integration with the e‑commerce platform.

#19 Toast

Restaurant‑focused POS and payment solution offering integrated ordering, loyalty, and detailed sales analytics.

Omnichannel processor delivering integrated POS, e‑commerce, and mobile solutions with PCI‑compliant security.

Enterprise gateway with customizable APIs, recurring billing, and transparent interchange‑plus pricing.