Litmus
Litmus is an email marketing platform that allows you to build, test, and analyze high-performing email campaigns across dozens of popular email clients and devices to ensure perfect rendering.
Mailgun
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.
Quick Comparison
| Feature | Litmus | Mailgun |
|---|---|---|
| Website | litmus.io | 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 | ||
| Integrations | ||
| Target Users | ||
| Target Industries | ||
| Customer Count | 0 | 0 |
| Founded Year | 2005 | 2010 |
| Headquarters | Boston, USA | San Antonio, USA |
Overview
Litmus
Litmus is an all-in-one email optimization platform designed to help you create flawless email experiences for every subscriber. You can build emails from scratch using a specialized code editor, or use visual tools to quickly assemble templates that work across all major platforms. The core strength lies in its automated testing, which lets you preview how your messages look in over 100 email clients and devices before you hit send.
Beyond just testing, you can use the platform to manage your entire email workflow, from collaborative reviews and approvals to advanced post-send analytics. It helps you identify broken links, missing alt text, and slow loading times that might hurt your engagement. Whether you are a solo marketer or part of a large enterprise team, the platform ensures your brand remains consistent and professional in every inbox.
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
Litmus Features
- Email Previews View your email exactly as it appears in 100+ email clients and devices to catch rendering issues instantly.
- Litmus Builder Write code and see live previews side-by-side, or use visual modules to build responsive emails faster.
- Spam Testing Scan your emails against major spam filters and blacklists to ensure your messages actually reach the inbox.
- Proof & Collaboration Share your email designs with stakeholders and collect centralized feedback directly on the preview to speed up approvals.
- Advanced Analytics Track how long subscribers spend reading your emails and which devices they use to better understand your audience.
- Link Monitoring Automatically verify that every link and image in your email works correctly so you never send a broken campaign.
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
Litmus Pricing
- 1 user seat
- 1,000 email previews per month
- Unlimited Readability testing
- Basic spam testing
- Litmus Builder access
- Email community support
- Everything in Basic, plus:
- Up to 5 user seats
- 2,000 email previews per month
- Advanced spam testing
- Editor integrations (Slack, Trello)
- Litmus Proof collaboration tool
Mailgun Pricing
- 5,000 free emails per month
- 5 days of log retention
- SMTP relay and RESTful API
- Webhooks for tracking
- Basic email analytics
- 50,000 emails per month
- Inbound email routing
- 5 days of log retention
- Basic email validation
- Subaccount management
- 24/7 ticket support
Pros & Cons
Litmus
Pros
- Extensive device coverage for accurate email previews
- Intuitive code editor with real-time visual updates
- Streamlined feedback process for team approvals
- Reliable spam testing improves overall deliverability
- Detailed engagement analytics beyond standard open rates
Cons
- Starting price is high for small businesses
- Preview counts can be consumed quickly
- Steep learning curve for non-technical users
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