Authorize.net vs Klarna Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Authorize.net

0.0 (0 reviews)

Authorize.net is a reliable payment gateway that helps you accept credit cards, contactless payments, and e-checks through your website, mobile app, or retail store securely.

Starting at $25/mo
Free Trial NO FREE TRIAL
VS

Klarna

0.0 (0 reviews)

Klarna is a global payment service provider that offers flexible buy now pay later solutions and a comprehensive shopping app to help you manage your finances and purchases.

Starting at --
Free Trial NO FREE TRIAL

Quick Comparison

Feature Authorize.net Klarna
Website authorize.net klarna.com
Pricing Model Subscription Freemium
Starting Price $25/month Custom Pricing
FREE Trial ✘ No free trial ✘ No free trial
Free Plan ✘ No free plan ✓ Has free plan
Product Demo ✓ Request demo here ✘ No product demo
Deployment saas mobile saas mobile
Integrations Shopify WooCommerce Magento BigCommerce QuickBooks Salesforce Miva Volusion Squarespace Wix Shopify WooCommerce Magento Salesforce Commerce Cloud BigCommerce Stripe Adyen Wix PrestaShop Apple Pay
Target Users small-business mid-market solopreneur small-business mid-market enterprise
Target Industries retail fashion electronics
Customer Count 0 0
Founded Year 1996 2005
Headquarters Foster City, USA Stockholm, Sweden

Overview

A

Authorize.net

Authorize.net simplifies how you get paid by providing a secure bridge between your business and the credit card networks. You can accept payments online, in-person, or over the phone while protecting your business from fraud with built-in security tools. Whether you are running a small online boutique or a growing service business, the platform handles the technical side of transactions so you can focus on your customers.

You can manage your entire payment lifecycle from a single dashboard, including recurring billing for subscriptions and digital invoicing for quick client payments. It integrates with most major shopping carts and point-of-sale systems, making it easy to add payment capabilities to the tools you already use. With 24/7 support and a long history in the industry, it provides the stability you need to scale your operations.

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Klarna

Klarna is a flexible payment and shopping platform that changes how you handle your online and in-store purchases. Instead of paying for everything upfront, you can split your costs into smaller, manageable installments or delay payments entirely until after your items arrive. This flexibility helps you manage your cash flow without the high interest rates typically associated with traditional credit cards.

You can use the platform across millions of retailers worldwide through its dedicated app or integrated web checkouts. It also provides you with a centralized hub to track your deliveries, manage returns, and monitor your spending habits in real-time. Whether you are a frequent shopper looking for budget flexibility or a business owner wanting to increase conversion rates, the platform provides the tools to make transactions smoother and more transparent.

Overview

A

Authorize.net Features

  • Advanced Fraud Detection Identify and stop suspicious transactions with customizable filter rules that protect your profits and reduce chargebacks.
  • Recurring Billing Set up automated subscription payments or installment plans to ensure you get paid on time every month.
  • Customer Information Manager Store sensitive payment data on secure servers so your returning customers can checkout quickly without re-entering details.
  • Digital Invoicing Send professional invoices directly to your customers' email and let them pay instantly with a single click.
  • Virtual Terminal Process manual transactions securely from any web browser when taking orders over the phone or via mail.
  • Mobile Payments Accept payments on the go by turning your smartphone or tablet into a portable point-of-sale device.
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Klarna Features

  • Pay in 4. Split your purchase into four interest-free payments bi-weekly so you can manage your budget more effectively.
  • Pay in 30 Days. Try your items at home before you pay by delaying the full transaction for up to a month.
  • Klarna Financing. Spread the cost of larger purchases over 6 to 36 months with transparent monthly plans and clear terms.
  • Price Drop Alerts. Save your favorite items to a collection and get notified immediately when the price drops so you never overpay.
  • Digital Wallet. Store all your loyalty cards in one place and pay securely at any checkout with a single tap.
  • Buyer Protection. Shop with confidence knowing you are covered if your items don't arrive or aren't as described.

Pricing Comparison

A

Authorize.net Pricing

All-in-One
$25
  • No setup fee
  • Gateway and Merchant Account
  • 2.9% + $0.30 per transaction
  • Advanced Fraud Detection Suite
  • Customer Information Manager
  • Automated Recurring Billing
K

Klarna Pricing

Pros & Cons

M

Authorize.net

Pros

  • Highly reliable uptime for consistent payment processing
  • Excellent 24/7 customer support via phone and chat
  • Extensive integration options with popular e-commerce platforms
  • Robust security features that simplify PCI compliance

Cons

  • Monthly fee applies even if you have no sales
  • Interface feels dated compared to newer competitors
  • Account setup process can be more rigorous than others
A

Klarna

Pros

  • Interest-free installments make high-ticket items more affordable
  • Intuitive mobile app simplifies tracking multiple orders
  • Smooth checkout process saves time during online shopping
  • Helpful notifications remind you before upcoming payments are due

Cons

  • Late fees apply if you miss a scheduled payment
  • Customer support response times can be slow during peaks
  • Missing payments can negatively impact your credit score
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