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Marketing · head to head

Optimizely vs Synthesio

Optimizely logo

Optimizely

Marketing

Digital experience optimization

From
$10000/year
Rated
-
Full reviewWebsite
Synthesio logo

Synthesio

Social Media

Enterprise social intelligence platform owned by Ipsos, with market research methodology behind it

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Optimizely no pricing is published and no minimum is stated; Synthesio there is no published pricing, no free trial and no self-serve signup, so evaluating Synthesio requires a sales process before you can see whether the data quality suits your category.
  • They diverge on capability: Optimizely covers A/B testing, Synthesio covers Global social listening.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Optimizely and Synthesio actually diverge.

Attributes where Optimizely and Synthesio differ
AttributeOptimizelySynthesio
Starting price$10000/yearOn request
PlatformsWeb, MobileWeb, API
CategoryMarketingSocial Media
Founded2010Unknown

Identical on both: pricing model (quote), free tier (No), user rating (Not yet rated).

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 Synthesio

  • Global social listening
  • Signals
  • Audience analysis
  • Ecommerce listening
  • Search intelligence
  • Reputation and crisis monitoring
  • Competitive benchmarking
  • ML classification

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 Synthesio
  • Feature flagging and personalisation for digital productsnot Synthesio

Synthesio

  • A global consumer goods brand that wants social listening and commissioned survey research from the same supplier with aligned methodologynot Optimizely
  • An insights team tracking product review sentiment across thousands of ecommerce listings in multiple marketsnot Optimizely
  • A brand entering a new market that needs audience profiling of who already discusses the category therenot Optimizely
  • A corporate communications function that needs crisis detection across languages it has no in-house analysts fornot 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

Synthesio

  • There is no published pricing, no free trial and no self-serve signup, so evaluating Synthesio requires a sales process before you can see whether the data quality suits your category.
  • Cost is repeatedly cited by reviewers as high relative to peers, and because Ipsos analyst services are priced separately from the platform licence, the quoted software figure is frequently not the figure you end up spending.
  • The interface is dated compared with newer listening tools and the learning curve is steep, which in practice means the platform gets used by one or two trained analysts rather than adopted across a marketing team.
  • Some of the newer AI-driven features have been described by users as glitchy or over-promised relative to the sales demonstration, so insist on testing Signals against your own historical data during evaluation.
  • Historical data access is limited and governed by contract scope rather than being unlimited, so retrospective analysis across several years frequently requires a separately priced data request.

Pricing, plan by plan

Optimizely

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

Synthesio

On request
  • Synthesio$undefined/year
    • Global social listening across 181 languages
    • Signals generative AI theme detection
    • Audience and ecommerce analysis

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 Synthesio if

  • You need global social listening.
  • You work on Web, API.
  • You also want signals.
Synthesio review

Questions people ask

Is Optimizely or Synthesio better?
Neither clearly leads. Optimizely starts at $10000/year and Synthesio at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Optimizely or Synthesio?
Optimizely starts at $10000/year and Synthesio at On request.
Does Optimizely or Synthesio run on more platforms?
Optimizely runs on Web, Mobile. Synthesio runs on Web, API.
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 Synthesio is typically brought in for.
What can Optimizely do that Synthesio cannot?
Optimizely covers A/B testing, Multivariate testing, Personalization, Feature management. Synthesio covers Global social listening, Signals, Audience analysis, Ecommerce listening.

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
Synthesio: Who owns Synthesio?

Ipsos, the market research group, acquired it in October 2018 for a reported 50 million USD or more, and it is marketed as an Ipsos company.

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
Synthesio: Can I try it before buying?

No. There is no free trial or self-serve signup; evaluation runs through a sales-led demonstration process.

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
Synthesio: What is the practical advantage over Brandwatch?

The ability to buy platform licence and Ipsos analyst services from one supplier, with methodology consistent with survey research you may already commission from the same group.

Synthesio: How many languages does it cover?

Synthesio reports coverage across 181 languages and 25 markets, which is among the broadest in the category.

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