Shift4 Payments vs Fattmerchant Comparison
Shift4 Payments
Starting at Contact for pricing
- Large Enterprises
- Medium Business
Shift4 Payments is a revolutionary merchant account payment processing solution. From our patented online technology that displays your shopping cart directly on a mobile phone or computer to the dynamic web-based report…
Fattmerchant
Starting at $49 /Month
- Large Enterprises
- Medium Business
Fattmerchant, now branded as Stax, is a payment processing platform for small and mid-sized US businesses that charges a flat monthly subscription plus interchange cost rather than a per-transaction markup, which lowers…
Fattmerchant leads on user satisfaction with a 4.3-star rating across 716 reviews.
Shift4 Payments vs Fattmerchant — at a glance
| Feature | Shift4 Payments | Fattmerchant |
|---|---|---|
| Rating | 2.5 / 5 | 4.3 / 5 |
| Reviews | 26 | 716 |
| Starting price | Contact for pricing | $49 /Month |
| Free trial | No | No |
| Free version | No | No |
| Best for | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business |
| Category | Payment Processing Software | Payment Processing Software |
| Platforms | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS | SaaS/Web/Cloud, Mobile - Android, Mobile - iOS |
| API | Available | Available |
| Support modes | Online | 24/7 (Live rep), Online |
| Certifications | SOC 2 | SOC 2, GDPR |
| Data residency | Global | US |
Key differences between Shift4 Payments and Fattmerchant
- Pricing: Fattmerchant starts at $49 /Month. Shift4 Payments pricing is not publicly listed.
- User satisfaction: Fattmerchant scores higher with a 4.3-star average.
- Deployment: Shift4 Payments supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS; Fattmerchant supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS.
Shift4 Payments vs Fattmerchant — find the better fit before you commit.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Payment Processing Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
Other options
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Biggest differences
Start here before you go deeper into features.
Large Enterprises, Medium Business, Small Business
Large Enterprises, Medium Business, Small Business
Shift4 Payments typically suits Large Enterprises and Medium Business. Fattmerchant tends to fit Large Enterprises and Medium Business better. The right choice depends on your team size, workflow, and whether a free trial matters.
Description | Shift4 Payments is a revolutionary merchant account payment processing solution. From our patented online technology that displays your shopping cart directly on a mobile phone or computer ... Read More about Shift4 Payments | Fattmerchant, now branded as Stax, is a payment processing platform for small and mid-sized US businesses that charges a flat monthly subscription plus interchange cost rather than a ... Read More about Fattmerchant |
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Entry Level Pricing |
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User RatingsBased on verified Spotsaas reviews | ||
Get pricing help | Get pricing help |
Software Demo
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How do Shift4 Payments and Fattmerchant Compare on Features?
Total Features | 8 Features | 8 Features |
|---|---|---|
Unique Features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Shift4 Payments and Fattmerchant on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Pricing Page | Pricing information not available |  |
Other Details
Organization Types supported |
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Platforms Supported |
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API Support |
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Get help choosing | Get help choosing |
Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
SOC 2 | ✓ Yes | ✓ Yes |
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HIPAA | ✗ No | ✗ No |
GDPR | — | ✓ Yes |
Data Encryption | ✓ Yes | ✓ Yes |
Data Residency | 🌐 Global | 🇺🇸 US |
Shift4 Payments User Reviews & Rating Comparison
User Ratings | ||
|---|---|---|
Rating Distribution | ||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Buyer sentiment is cautious across 132 reviews, with several recurring concerns in feedback. What buyers like
Common complaints
| Buyer sentiment Buyer sentiment is positive across 183 reviews, with strong overall satisfaction. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product |
| Negative Reviews | No reviews available for the product | No reviews available for the product |
Media and Screenshots
Videos |  1 Videos |  3 Videos |
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Shift4 Payments or Fattmerchant?
- Fattmerchant edges out the other on user ratings (4.3 vs 2.5). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Shift4 Payments and Fattmerchant offer a free trial?
- Neither Shift4 Payments nor Fattmerchant currently lists a free trial.
- What is the starting price of Shift4 Payments vs Fattmerchant?
- Shift4 Payments starts at Contact for pricing. Fattmerchant starts at $49 /Month.
- What are the top alternatives to Shift4 Payments?
- Top alternatives to Shift4 Payments include WePay, Square Payments, Payline Data, MagicPay, Quantum Electronic Payments.
- What are the top alternatives to Fattmerchant?
- Top alternatives to Fattmerchant include BluePay, WePay, Global Payments, Merchant One, PayAnywhere.