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Marketing · head to head

Optimizely vs Postmark

Optimizely logo

Optimizely

Marketing

Digital experience optimization

From
$10000/year
Rated
-
Full reviewWebsite
Postmark logo

Postmark

Marketing

No hidden fees, no guesswork. Just the features you need, at a price that makes sense

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Optimizely no pricing is published and no minimum is stated; Postmark free tier caps at 100 emails per month with no overages allowed
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Optimizely and Postmark actually diverge.

Attributes where Optimizely and Postmark differ
AttributeOptimizelyPostmark
Starting price$10000/yearOn request
Pricing modelquoteUnknown
PlatformsWeb, MobileWeb
Founded2010Unknown

Identical on both: free tier (No), user rating (Not yet rated), category (Marketing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Optimizely

  • A/B testing
  • Multivariate testing
  • Personalization
  • Feature management
  • Analytics
  • Google Analytics
  • Adobe Analytics
  • SOC2

Only in Postmark

Nothing recorded that Optimizely does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Optimizely

  • A/B testing and experimentation across web and product experiencesnot Postmark
  • Feature flagging and personalisation for digital productsnot Postmark

Postmark

  • Sending password reset emails with industry-leading delivery speednot Optimizely
  • Processing inbound email replies into JSON objects for applicationsnot Optimizely
  • Tracking failed email deliveries and suppressing invalid addressesnot Optimizely
  • Separating transactional emails from marketing emails with message streamsnot Optimizely

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Optimizely

  • No pricing is published and no minimum is stated
  • Every plan is individually packaged, so no two quotes are necessarily comparable
  • Reaching a figure requires a demo or sales conversation

Postmark

  • Free tier caps at 100 emails per month with no overages allowed
  • Basic plan ($15/mo) includes 10,000 emails then charges $1.80 per 1,000 extra; Pro and Platform tiers have their own lower per-1,000 overage rates ($1.30 and $1.20), so cost scales per email beyond the included volume
  • Custom high-volume pricing above the published tiers requires contacting sales

Pricing, plan by plan

Optimizely

$10000/year
  • Enterprise$undefined/year
    • A/B testing
    • Personalization
    • Feature management

Postmark

On request

No published plan breakdown. See the Postmark review.

Which should you pick?

Choose Optimizely if

  • You need a/b testing.
  • You work on Web, Mobile.
  • You also want multivariate testing.
Optimizely review

Choose Postmark if

Nothing in the data separates Postmark from Optimizely on the points above - pick on price and on how each one feels to use.

Postmark review

Questions people ask

Is Optimizely or Postmark better?
Neither clearly leads. Optimizely starts at $10000/year and Postmark at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Optimizely or Postmark?
Optimizely starts at $10000/year and Postmark at On request.
Does Optimizely or Postmark run on more platforms?
Optimizely runs on Web, Mobile. Postmark runs on Web.
What is Optimizely best used for?
Optimizely is most often used for a/b testing and experimentation across web and product experiences, feature flagging and personalisation for digital products. Of those, a/b testing and experimentation across web and product experiences and feature flagging and personalisation for digital products are not what Postmark is typically brought in for.
What can Optimizely do that Postmark cannot?
Optimizely covers A/B testing, Multivariate testing, Personalization, Feature management.

Answered from the vendors’ own pages

Optimizely: How much does Optimizely cost?

Optimizely does not publish pricing rates. The company states that every plan is individually packaged based on specific customer needs. Interested customers must request a demo or contact the sales team to receive customized pricing.

Source
Postmark: What is the cheapest paid plan for Postmark email sending?

Postmark Basic plan is $15/month for 10,000 emails, with overages at $1.80 per 1,000 additional emails. Free tier limited to 100/month. No annual billing discount available. Source: https://www.postmarkapp.com/pricing

Source
Optimizely: What is the pricing model for Optimizely?

Optimizely uses a custom enterprise pricing model rather than published rate cards. Pricing is determined through direct consultation with the sales team based on the customer's digital needs and feature requirements.

Source
Postmark: How are Postmark email overages calculated?

Overages are calculated at month-end and billed with your next plan cost. Basic tier overages: $1.80 per 1,000; Pro: $1.30 per 1,000; Platform: $1.20 per 1,000. Unused monthly emails do not carry over. Source: https://www.postmarkapp.com/pricing

Source
Optimizely: Is there a free trial of Optimizely?

Optimizely does not specify free trial availability on its website. Customers interested in exploring the platform are directed to request a demo through the company's website to discuss trial options.

Source
Postmark: What payment methods does Postmark accept?

Postmark accepts Visa, MasterCard, American Express, Diners Club, and JCB. No PayPal or purchase orders accepted. Bootstrapped startups can request a $75 account credit. Source: https://www.postmarkapp.com/pricing

Source
Postmark: Can I get a dedicated IP on Postmark without high volume?

No. Postmark dedicated IPs require minimum 300,000 emails per month and start at $50/month. Alternative: use Postmark's shared infrastructure included in all tiers. Source: https://www.postmarkapp.com/pricing

Source
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