Fattmerchant vs Merchant One Comparison
Fattmerchant
Starting at $49 /Month
- Large Enterprises
- Medium Business
Fattmerchant is an all-in-one payment processing platform that changes the way companies conduct business with their customers.Fattmerchant offers everything to start a business, including credit card payment processing…
Merchant One
Starting at Contact for pricing
- Large Enterprises
- Medium Business
Merchant One Payment Processing Software is the easiest cloud-based solution on the market today. Merchant One fuses together the ease of a POS system with powerful processing and shopping cart functionality. It is one p…
Merchant One leads on user satisfaction with a 4.4-star rating across 4,465 reviews.
Fattmerchant vs Merchant One — at a glance
| Feature | Fattmerchant | Merchant One |
|---|---|---|
| Rating | 4.3 / 5 | 4.4 / 5 |
| Reviews | 716 | 4,465 |
| Starting price | $49 /Month | Contact for pricing |
| 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 |
| API | Available | — |
| Support modes | 24/7 (Live rep), Online | 24/7 (Live rep), Online |
| Certifications | SOC 2, GDPR | SOC 2, GDPR, ISO 27001 |
| Data residency | US | US |
Key differences between Fattmerchant and Merchant One
- Pricing: Fattmerchant starts at $49 /Month. Merchant One pricing is not publicly listed.
- User satisfaction: Merchant One scores higher with a 4.4-star average.
- Deployment: Fattmerchant supports SaaS/Web/Cloud, Mobile - Android, Mobile - iOS; Merchant One supports SaaS/Web/Cloud.
Fattmerchant vs Merchant One — 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
Talk to an expert Talk to an expert | Talk to an expert Talk to an expert |
Biggest differences
Start here before you go deeper into features.
Large Enterprises, Medium Business, Small Business
Large Enterprises, Medium Business, Small Business
Fattmerchant typically suits Large Enterprises and Medium Business. Merchant One 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 | Fattmerchant is an all-in-one payment processing platform that changes the way companies conduct business with their customers.Fattmerchant offers everything to start a business, including ... Read More about Fattmerchant | Merchant One Payment Processing Software is the easiest cloud-based solution on the market today. Merchant One fuses together the ease of a POS system with powerful processing and shopping ... Read More about Merchant One |
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Entry Level Pricing |
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Free Trial Availability |
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User RatingsBased on verified Spotsaas reviews | ||
Get pricing help | Get pricing help |
Software Demo
Demo |  Merchant One has not given any software demo yet If you're the owner of this profile, add your demo.Contact us |
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Compare Fattmerchant and Merchant One 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 Plans |
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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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Modes of support |
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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 | ✓ Yes |
ISO 27001 | — | ✓ Yes |
Single Sign-On (SSO) | — | ✓ Yes |
Multi-Factor Auth (MFA) | — | ✓ Yes |
Data Encryption | ✓ Yes | ✓ Yes |
Audit Logs | — | ✓ Yes |
Data Residency | 🇺🇸 US | 🇺🇸 US |
Fattmerchant User Reviews & Rating Comparison
User Ratings | ||
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Rating Distribution | ||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Buyer sentiment is positive across 183 reviews, with strong overall satisfaction. What buyers like
Common complaints
| Buyer sentiment Buyer sentiment is positive across 1505 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 |  3 Videos | No videos available. |
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Top Alternatives to Fattmerchant and Merchant One in 2026
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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, Fattmerchant or Merchant One?
- Merchant One edges out the other on user ratings (4.4 vs 4.3). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
- Do Fattmerchant and Merchant One offer a free trial?
- Neither Fattmerchant nor Merchant One currently lists a free trial.
- What is the starting price of Fattmerchant vs Merchant One?
- Fattmerchant starts at $49 /Month. Merchant One starts at Contact for pricing.
- What are the top alternatives to Fattmerchant?
- Top alternatives to Fattmerchant include BluePay, WePay, Global Payments, Merchant One, PayAnywhere.
- What are the top alternatives to Merchant One?
- Top alternatives to Merchant One include BluePay, WePay, Square Payments, MagicPay, Quantum Electronic Payments.