Postmark vs Substack: Pricing Comparison 2026
Side-by-side pricing comparison of Postmark and Substack. See all plans, features, and costs at a glance.
Bottom line: Postmark starts at $5/mo and Substack starts at $5/mo. Compare all 10 pricing tiers side by side.
Last updated: July 6, 2026
Substack - Substack offers a free plan, offers 7 tiers vs 3.
Postmark vs Substack: Quick Pricing Facts
| Feature | Postmark | Substack |
|---|---|---|
| Starting Price | $5/mo | $5/mo |
| Number of Plans | 3 | 7 |
| Free Tier | No | Yes |
| Pricing Model | usage-based | usage-based |
| Annual Discount | N/A | N/A |
Postmark and Substack are both priced at $5/mo, making them equally accessible Email Marketing tools. Together they offer 10 pricing plans with 22 features compared, so the best choice comes down to which features match your needs.
Substack stands out with a free plan for getting started.
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 |  Postmark Try free |  Substack Try free |
|---|---|---|
| Tier 1 | Dedicated IPs $50/month | Free $0/monthCheapest Includes
|
| Tier 2 | Custom activity retention $5/monthCheapest | Basic $5/monthCheapest $5 / year Includes
|
| Tier 3 | DMARC monitoring $14/month | Standard $7/monthCheapest $7 / year Includes
|
| Tier 4 | - | Advanced $10/monthCheapest $10 / year Includes
|
| Tier 5 | - | Pro $15/monthCheapest $15 / year Includes
|
| Tier 6 | - | Premium $30/monthCheapest $30 / year Includes
|
| Tier 7 | - | Enterprise $75/monthCheapest $75 / year Includes
|
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Frequently Asked Questions: Postmark vs Substack
Which is cheaper, Postmark or Substack?
How many pricing plans does Postmark have vs Substack?
Does Postmark or Substack offer a free plan?
Can I save money by paying annually for Postmark or Substack?
How do Postmark and Substack compare for Email Marketing?
Sources
- Postmark Official Pricing- Vendor pricing page
- Substack Official Pricing- Vendor pricing page
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