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Heap vs Optimizely comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Heap
Ranking in Web Analytics
4th
Average Rating
8.0
Number of Reviews
11
Ranking in other categories
No ranking in other categories
Optimizely
Ranking in Web Analytics
13th
Average Rating
9.2
Number of Reviews
7
Ranking in other categories
Digital Experience Platforms (DXP) (16th), Feature Management (4th)
 

Mindshare comparison

As of August 2026, in the Web Analytics category, the mindshare of Heap is 5.5%, down from 5.9% compared to the previous year. The mindshare of Optimizely is 4.3%, up from 3.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Analytics Mindshare Distribution
ProductMindshare (%)
Heap5.5%
Optimizely4.3%
Other90.2%
Web Analytics
 

Featured Reviews

JF
Engagement Manager at TheMathCompany
Provides actionable user behavior insights and improves feature prioritization decisions
I didn't encounter many components that were annoying. One main area of frustration was finding data. When wanting to find data about clicks on a specific UI feature, element, or button, sometimes the objects were not named in a descriptive way. That was our problem on the implementation side, not Heap's. I also found that the analytics dashboards in Heap couldn't be customized as much as desired. I couldn't adjust the charts in the widgets or the settings on each widget to the level wanted in either data granularity or physical size of the widget on the dashboard page. Additional flexibility in dashboard building and widget building would be beneficial.
it_user623373 - PeerSpot reviewer
AB Testing and Web Optimization Specialist at a manufacturing company with 1,001-5,000 employees
It's given us a powerful tool that's doesn't limit our test ideas by the confines of code we can or cannot use.
Ease of building the test via HTML, Java, and CSS. It's given us a powerful tool that's doesn't limit our test ideas by the confines of code we can or cannot use The thoroughness of results has helped our company make better decisions for our website. Decisions that help our customers with their…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Heap has positively impacted my organization by giving our team visibility into how users interact with our application, allowing us to move from guessing to real-time information."
"Heap has improved data-driven decisions, enabled faster issue discovery, increased conversions, and delivered overall better user experiences, which has impacted my organization and our product goals."
"Discerning application and UX weak points, driving better user retention."
"The reporting has helped improve investor relations and let us quantify our growth and progress with ease."
"Heap eliminates the guesswork of funnels, directly resulting in higher conversion rates and revenue."
"What I like best about it is the session replay feature. It saves a lot of time. I don't need to go and debug or replicate issues multiple times. We can go to the session replay for a few minutes. We can ask when the issue occurred, go to that time in the replay, and see whether the user made a mistake or if there's an app caching issue. That has been very helpful."
"Heap enables one to easily track how customers use one's applications on both the web and mobile."
"An immensely useful feature is the retention graphs with the ability to generate retention data for individual features."
"Optimizely is a great product that has inspired a great community and is the standard for A/B testing."
"Optimizely can work for a lot more things than only testing; it is a pretty easy yet powerful tool."
"Customer service is wonderful."
"Dead simple A/B testing with no code knoweldge needed."
"Customer service is the best in the testing industry; transparent support along with a very strong community."
"Customer service is excellent!"
"ROI: Infinite! (Got 3X conversion improvement using suggestions given by the product during the free evaluation period)"
 

Cons

"My experience with pricing, setup cost, and licensing has a problem because when you are collecting more and more data, it becomes more and more expensive, and the ten thousand free sessions can be burned really fast, after which it became expensive."
"I would rate Heap's scalability around 6 out of 10 because we are still not completely familiar with it."
"The product could benefit from more advanced UI features."
"I would like to see improvements in Heap including more dashboard customization, better predictive analysis, mobile support, more AI insights, and greater reporting flexibility."
"Their analytics could be more user-friendly."
"Based on my experience, there's some room for improvement. The application is a bit slow. Also, I must read through old documentation when I need to check for new features. It's not very user-friendly. Once you're in the application, it's easy because it has many features. But for first-time users, you have to go through all the documents, which can be challenging."
"I also found that the analytics dashboards in Heap couldn't be customized as much as desired."
"It's more expensive."
"Does not allow multipage variants (i.e. allows only variants in elements inside one page)."
"Exporting statistics provide more statistical data."
"When testing images or anything involving JavaScript or more than text, they can really slow down the load performance of a page."
"There were previously issues with experiments saving as expected in Classic."
"Verifying goals could be easier."
"Better communication with 3rd party implementation"
 

Pricing and Cost Advice

"The solution is expensive."
"Heap's pricing can be heavy according to the usage and requirements for control billing."
Information not available
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Top Industries

By visitors reading reviews
Insurance Company
12%
Financial Services Firm
11%
Real Estate/Law Firm
10%
Construction Company
9%
Outsourcing Company
13%
Computer Software Company
10%
Construction Company
9%
Comms Service Provider
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise2
Large Enterprise6
By reviewers
Company SizeCount
Small Business3
Large Enterprise5
 

Questions from the Community

What is your experience regarding pricing and costs for Heap?
Regarding my experience with pricing, I am not entirely certain as another team manages that aspect, but I believe Heap provides a good licensing model. It has valid licensing for users across orga...
What needs improvement with Heap?
Heap can be improved, especially considering data privacy concerns, as patient data is sometimes shared with different staff members, and sensitive information should be protected. There must be an...
What advice do you have for others considering Heap?
I would rate Heap eight out of ten. I chose eight out of ten for Heap because, while it offers a different way of handling data, I compared it to one of the tools I used earlier called Amplitude, w...
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Comparisons

 

Overview

 

Sample Customers

Zendesk, Marketo, Ernst & Young, Salesforce
Sony, SalesForce, FICO, Trulia, ABC, Fox Interactive Media, The Guardian, CBS, Walt Disney Company, Clorox, Livestrong
Find out what your peers are saying about Heap vs. Optimizely and other solutions. Updated: August 2026.
908,877 professionals have used our research since 2012.