Litmus vs Mailgun 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

Litmus

0.0 (0 reviews)

Litmus is an email marketing platform that allows you to build, test, and analyze high-performing email campaigns across every device and client to ensure a perfect subscriber experience.

Starting at $99/mo
Free Trial 7 days
VS

Mailgun

0.0 (0 reviews)

Mailgun is an email delivery service providing developers with a powerful API to send, receive, and track transactional and marketing emails with high deliverability and real-time analytics.

Starting at Free
Free Trial 30 days

Quick Comparison

Feature Litmus Mailgun
Website litmus.com mailgun.com
Pricing Model Subscription Subscription
Starting Price $99/month Free
FREE Trial ✓ 7 days free trial ✓ 30 days free trial
Free Plan ✘ No free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas cloud
Integrations Mailchimp Salesforce Marketing Cloud HubSpot Adobe Campaign Slack Trello Google Drive Dropbox Microsoft Outlook Gmail WordPress Salesforce Zapier Slack Magento Shopify Google Cloud AWS Heroku Make
Target Users small-business mid-market enterprise small-business mid-market enterprise
Target Industries
Customer Count 0 0
Founded Year 2005 2010
Headquarters Boston, USA San Antonio, USA

Overview

L

Litmus

Litmus provides you with a comprehensive environment to create, test, and analyze your email campaigns before they reach your subscribers' inboxes. You can catch broken links, missing images, or formatting issues across more than 100 different email clients and devices instantly. This ensures your brand looks professional every time you hit send, regardless of whether your customer is using an old version of Outlook or the latest iPhone.

The platform simplifies your entire production workflow by offering collaborative building tools and automated QA checklists. You can also track how your audience interacts with your emails through advanced analytics that go beyond simple open rates. Whether you are a solo marketer or part of a large enterprise agency, you can use these insights to refine your strategy and improve your return on investment.

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Mailgun

Mailgun is a cloud-based email delivery service designed to help you send, receive, and track emails effortlessly through a robust API or SMTP integration. Whether you are sending password resets, shipping notifications, or marketing newsletters, you can rely on its infrastructure to handle high volumes while maintaining excellent inbox placement. You can also use its powerful inbound routing to process incoming emails and turn them into structured data for your applications.

The platform focuses on technical reliability and provides you with detailed logs and analytics to troubleshoot delivery issues in real-time. You can verify email addresses before sending to reduce bounce rates and protect your sender reputation. It scales perfectly from small projects to enterprise-level applications, offering a flexible pay-as-you-go model alongside dedicated plans for high-volume senders.

Overview

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Litmus Features

  • Email Previews View your email exactly as it appears across 100+ popular email clients and devices to ensure perfect rendering.
  • Visual Editor Build and edit your emails in real-time using a code editor or visual interface that syncs with your ESP.
  • Spam Testing Scan your emails against major spam filters to identify issues that might prevent your messages from reaching the inbox.
  • Automated QA Checklist Verify that all your links, images, and tracking codes work correctly before you send your campaign.
  • Email Analytics Discover which devices your subscribers use and how long they spend reading your emails with advanced engagement tracking.
  • Proof and Collaboration Streamline your review process by letting teammates leave comments and approvals directly on your email designs.
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Mailgun Features

  • Email Sending API. Integrate email sending into your app quickly using popular languages like Python, PHP, and Java via RESTful API.
  • Inbound Routing. Automatically parse incoming emails and transform them into JSON data so your application can process replies easily.
  • Email Validation. Clean your mailing lists in real-time to remove invalid addresses and significantly reduce your bounce rates.
  • Deliverability Tools. Optimize your inbox placement with dedicated IP addresses and automated SPF/DKIM/DMARC setup assistance.
  • Real-time Analytics. Monitor your performance with detailed logs that show exactly when emails are delivered, opened, or clicked.
  • Send Time Optimization. Use machine learning to deliver messages at the exact moment your recipients are most likely to engage.

Pricing Comparison

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Litmus Pricing

Litmus Basic
$99
  • 1 user seat
  • Email previews
  • Litmus Builder
  • Basic spam testing
  • Email analytics
  • Unlimited read-only users
M

Mailgun Pricing

Trial
$0
  • 5,000 free emails per month
  • 5 days of log retention
  • SMTP relay and RESTful API
  • Webhooks for tracking
  • Basic email analytics

Pros & Cons

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Litmus

Pros

  • Extensive range of email client previews
  • Saves significant time on manual testing
  • Integrates directly with popular email providers
  • Detailed analytics on subscriber engagement levels
  • User-friendly interface for non-technical team members

Cons

  • High starting price for small businesses
  • Occasional slow loading times for previews
  • Limited features on the entry-level plan
A

Mailgun

Pros

  • Excellent documentation makes API integration straightforward for developers
  • High deliverability rates for transactional and marketing emails
  • Detailed real-time logs simplify troubleshooting delivery issues
  • Powerful inbound email parsing capabilities for apps
  • Reliable performance even during high-volume sending spikes

Cons

  • Technical interface can be intimidating for non-developers
  • Customer support response times vary on lower tiers
  • Pricing can become expensive as sending volume increases
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