2.7
34 reviews
5K+
Downloads
Content rating
Everyone
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About this app

Stax by Fattmerchant provides a flexible, scalable, all-in-one payments toolset so that you can move faster, think smarter, and make better decisions.

The Stax Pay mobile app gives you powerful insights on-the-go, enabling you to spot trends, manage cash flow, and improve business performance wherever you happen to be. And of course, you or your team can accept payments, process refunds, invoice customers, and much more all without having to download a separate app.

With Stax Pay you can:
- Swipe EMV chip cards with our optional bluetooth Stax mobile reader
- Accept Visa, MasterCard, Discover, and American Express
- Accept tips, apply discounts, and issue refunds
- Key-in, swipe, dip, or photo capture card details
- Email receipts to multiple customers and internal staff
- Securely store payment methods for future transactions
- Automatically sync payments and data to the Stax platform
- Receive deposits to your bank account automatically on the next business day
- Manage customers in real-time and send invoices, update contact information, and add new payment methods
- Stay protected from liability with PCI-Compliant tokenization technology for managing credit card information

The Stax Pay mobile app is all you need to run and grow your business, wherever you happen to be. We hope you’ll give it a try!
Updated on
Dec 17, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info, App activity, and App info and performance
This app may collect these data types
Photos and videos
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

2.5
29 reviews
Heather Fairchild
September 30, 2025
UPDATE: 2 STARS NOW! Can't get the app to work proper on any device. I am still able to sign in via online. Frustrated...I'd be unfortunate if I had to change up processing companies... Use to work most of the time. I've been using stax for years, and the rates are good. However, the app is glitchy, caused some delays and complications w customers, but for the most part was okay. Uninstalling and reinstaling is not helping! PLEASE FIX THE ISSUE! :( It's been weeks!
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Robert Churchill
May 24, 2023
Unable to modify or delete anything. Couldn't det reader to connect. Not once. They have no answer for that...... Half the time, I can't enter customer details, and the payment will not be processed without it. This whole system is really not worth it. I am canceling.
2 people found this review helpful
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Jonathan Saine
December 27, 2024
The service itself, for me, is one of the best out there as far as fees if you're an smb. However, the mobile app, while it looks nice is missing a lot of basic features like filter views for invoices. Hopefully this gets improved.
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What’s new

Resolved a bug that was blocking the addition of new customers.

App support

About the developer
Stax Payments, Inc.
support@staxpayments.com
618 E South St Ste 510 Orlando, FL 32801-2986 United States
+1 407-499-0326