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Fattmerchant - Payment Processing Software

Fattmerchant Reviews in June 2026: User Ratings, Pros & Cons

Revolutionize your business transactions with Fattmerchant.

4.3

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Starts from $49 / Month

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Fattmerchant Reviews & Ratings

4.3

Very Good

Based on 716 ratings & 183 reviews

Rating Distribution

Excellent

(145)

Very Good

(3)

Good

(1)

Poor

(6)

Terible

(28)

Spotsaas Editor’s POV

Fattmerchant offers a comprehensive payment processing solution ideal for businesses looking for an all-in-one platform. Its transparent pricing and strong customer support make it a solid choice for merchants.Read more

Fattmerchant pros and cons

  • All-in-one payment solution

  • Easy merchant account setup

  • Transparent pricing model

  • Robust customer support

  • Limited international support

  • Higher fees for small transactions

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Showing 101-110 out of 183

B

Barry

12/29/21

5 out of 5

Best Alternative for the Money

I am a CPA. I researched various major credit card processors for a client who does several million dollars per year in credit card sales and found that Stax by Fattmerchant was the best. First, they offered the best rates of the companies that I researched, even including their monthly fee of $399. Furthermore, they have very responsive customer service and training personnel. Finally, they made good when they did make minor errors during the initial migration. I highly recommend them.

J

Joshua

12/29/21

5 out of 5

Stax is really the best!

Stax is really the best virtual terminal and reporting database I have ever used in this space. And I have used lots of them. The portal is super clean, attractive and the ui is unbeatable. A new user can pick it up in an hour or so. Very little learning curve.

M

Michael

12/29/21

5 out of 5

Easy to use

Easy to use, great customer service.

B

Barry

12/29/21

5 out of 5

Best Alternative for the Money

I am a CPA. I researched various major credit card processors for a client who does several million dollars per year in credit card sales and found that Stax by Fattmerchant was the best. First, they offered the best rates of the companies that I researched, even including their monthly fee of $399. Furthermore, they have very responsive customer service and training personnel. Finally, they made good when they did make minor errors during the initial migration. I highly recommend them.

AM

Anastasia M

12/28/21

5 out of 5

"Neat software for invoicing & billing"

What do you like best about Stax? The interface is user-friendly, and it's very easy to create invoices What do you dislike about Stax?

AM

Anastasia M

12/28/21

5 out of 5

"Neat software for invoicing & billing"

What do you like best about Stax? The interface is user-friendly, and it's very easy to create invoices What do you dislike about Stax?

AM

Anastasia M

12/28/21

5 out of 5

"Neat software for invoicing & billing"

What do you like best about Stax? The interface is user-friendly, and it's very easy to create invoices What do you dislike about Stax?

AM

Anastasia M

12/28/21

5 out of 5

"Neat software for invoicing & billing"

What do you like best about Stax? The interface is user-friendly, and it's very easy to create invoices What do you dislike about Stax?

AM

Anastasia M

12/28/21

5 out of 5

"Neat software for invoicing & billing"

What do you like best about Stax? The interface is user-friendly, and it's very easy to create invoices What do you dislike about Stax?

S

Shaun

12/24/21

5 out of 5

Effortlessly streamlines my business.

Effortlessly streamlines my business.With amazing savings!

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].

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