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Email Marketing

Litmus vs Postmark: Pricing Comparison 2026

Side-by-side pricing comparison of Litmus and Postmark. See all plans, features, and costs at a glance.

Bottom line: Litmus starts at Custom pricing and Postmark starts at $5/mo. Compare all 8 pricing tiers side by side.

Last updated: March 16, 2026

Data compiled by Arthur Jacquemin
Updated March 16, 2026
Try Litmus freeTry Postmark free

Litmus vs Postmark: Quick Pricing Facts

FeatureLitmusPostmark
Starting PriceCustom pricing$5/mo
Number of Plans53
Free TierNoNo
Pricing Modelper-seatusage-based
Annual DiscountN/AN/A

Litmus and Postmark are both priced at Custom pricing, making them equally accessible Email Marketing tools. Together they offer 8 pricing plans with 30 features compared, so the best choice comes down to which features match your needs.

Litmus uses per-seat pricing while Postmark uses usage-based pricing, which may affect your total cost at scale.

Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Email Marketing needs.

Pricing Plans
Litmus
Postmark
Postmark
Try it free
Tier 1
Deliverability upgrade
Custom pricing
Includes
  • Inbox placement insights by mailbox provider
  • 24/7 reputation and deliverability monitoring
  • Deep engagement analytics filtered by platform, location, and mailbox provider
  • Easy tracking of SPF, DKIM, and DMARC results
  • Customizable alerts to react to reputation problems before they impact performance
  • Configurable dashboards to view deliverability and engagement data in one spot
  • Includes access to Everest
Start with Deliverability upgrade
Dedicated IPs
$50/monthCheapest
Start with Dedicated IPs
Tier 2
Sender Certification upgrade
Custom pricing
Includes
  • 24/7 monitoring of your email sending infrastructure backed by a dedicated compliance team
  • Placement on a trusted allow-list for improved inbox placement and fewer filtering issues
  • Built-in threat protection for high-risk sends and mandated mailing
  • Exclusive data feeds from mailbox providers and security companies
  • Daily and monthly performance reporting delivered to your inbox
Start with Sender Certification upgrade
Custom activity retention
$5/monthCheapest
Start with Custom activity retention
Tier 3
Competitive Intel upgrade
Custom pricing
Includes
  • See when competitors show up in the inbox with visibility into their send volume and frequency
  • Optimize subject lines with confidence by understanding what competitors are using
  • Make smarter strategic decisions using objective insight into what’s working and what’s not across your competitive landscape
  • Get insights into the email practices of best-in-class senders
Start with Competitive Intel upgrade
DMARC monitoring
$14/monthCheapest
Start with DMARC monitoring
Tier 4
Email Guardian upgrade
Custom pricing
Includes
  • Notifications for client changes, broken links, or image issues to protect subscriber experience and brand reputation
  • 24/7 monitoring for automated sends and frequently used email templates
  • Peace of mind knowing your most important emails are constantly protected and ready to drive revenue
Start with Email Guardian upgrade
—
Tier 5
Litmus Enterprise
Custom pricing
Includes
  • Unlimited seats and usage!
  • Automated QA checks and previews on 100+ email clients and devices
  • Easy-to-use email builder–with or without code
  • Personalization templates for custom images, countdown timers, and more
  • Customizable email testing profiles
  • Code editor integrations to test where you build
  • All-in-one collaboration and review hub
  • More Personalize features like custom scratch-offs and rule-based images
  • Enterprise-level ESP integrations
  • Advanced security settings and user permissions
  • Unique email analytics and insights you won’t find in your ESP alone
Start with Litmus Enterprise
—

Swipe to compare plans →

Litmus

Email testing, analytics, and collaboration for email teams

View all Litmus plans

Postmark

Fast and reliable transactional email delivery service

View all Postmark plans
Our Pick

Litmus

Litmus offers 5 tiers vs 3.

Based on pricing data only. Review the full comparison below for your specific needs.

Best value: Litmus

Try Litmus free

Which Should You Choose?

Choose Litmus if:

  • •You need 5 pricing tiers for flexible team sizing—more options mean less overpaying for features you don't need
  • •You want more features built-in—Litmus offers 30 additional features across its plans
  • •Your team needs custom enterprise pricing—Litmus offers negotiated terms for large deployments

Choose Postmark if:

  • •You prioritize Postmark's user experience and interface over price (both tools are similarly priced)
  • •Postmark's 3-tier usage-based structure gives clearer cost visibility for budget planning
  • •Postmark keeps its feature set lean, which means faster onboarding and less complexity

Litmus and Postmark offer competitively positioned plans [1], with Litmus starting at Custom pricing and Postmark at $5/mo. This pricing similarity means value differentiation comes down to feature alignment rather than cost. Litmus provides 5 pricing tiers versus Postmark's 3 options, which affects your flexibility and cost-per-tier efficiency as your team scales and usage increases. Feature-wise, Litmus offers 30 total features across its tiers, while Postmark provides 0. Map your required features to each tier to determine which tool delivers the capabilities you need at your target price point. With similar pricing, your final decision should prioritize feature requirements, integration ecosystem, and hands-on user experience testing. Request demos or activate trials with both vendors to validate long-term fit before committing to annual contracts.

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Frequently Asked Questions: Litmus vs Postmark

How many pricing plans does Litmus have vs Postmark?
Litmus offers 5 pricing plans, while Postmark offers 3 plans. More plans typically means more flexibility to match your exact needs and budget.
Does Litmus or Postmark offer custom enterprise pricing?
Litmus offers a custom-priced enterprise tier for larger teams. Postmark lists all its pricing publicly.
What pricing models do Litmus and Postmark use?
Litmus uses a per-seat pricing model, while Postmark uses usage-based pricing. The right model depends on your team size and usage patterns.
How do Litmus and Postmark compare for Email Marketing?
Both Litmus and Postmark are Email Marketing tools. Litmus offers 5 plans starting at Custom pricing, while Postmark offers 3 plans starting at $5/mo. Review the feature breakdowns above to see which better fits your Email Marketing needs.

Sources

  1. Litmus Official Pricing— Vendor pricing page
  2. Postmark Official Pricing— Vendor pricing page

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