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Heap vs Optimizely comparison

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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
6th
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) (18th), Feature Management (4th)
 

Mindshare comparison

As of September 2026, in the Web Analytics category, the mindshare of Heap is 5.6%, up from 5.2% compared to the previous year. The mindshare of Optimizely is 4.3%, up from 3.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Web Analytics Mindshare Distribution
ProductMindshare (%)
Heap5.6%
Optimizely4.3%
Other90.1%
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 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."
"Heap has positively impacted my organization by improving patient experiences through different portals and applications, enabling patients to understand their surgeries and doctor prescriptions better."
"The initial setup process was straightforward."
"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."
"Discerning application and UX weak points, driving better user retention."
"After using Heap, I started understanding the complete user journey because of its great feature, the auto-capture, which captures everything from seeing the ad to closing the deal."
"You can track customer behavior with your project, such as how the customer envisions, navigates, uses CPA, and every touch point on the website. You can plan to optimize the phases and the customer behavior of the journey."
"ROI: Infinite! (Got 3X conversion improvement using suggestions given by the product during the free evaluation period)"
"Customer service is excellent!"
"Dead simple A/B testing with no code knoweldge needed."
"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."
"Customer service is the best in the testing industry; transparent support along with a very strong community."
 

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."
"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."
"Data privacy is crucial, as my organization has experienced real-time examples where thousands of patients' sensitive data have been compromised."
"I would like to see improvements in Heap including more dashboard customization, better predictive analysis, mobile support, more AI insights, and greater reporting flexibility."
"It's pretty costly, and they use the common model of impressions."
"I would rate Heap's scalability around 6 out of 10 because we are still not completely familiar with it."
"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."
"Better communication with 3rd party implementation"
"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."
 

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
13%
Financial Services Firm
11%
Outsourcing Company
11%
Real Estate/Law Firm
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.
911,952 professionals have used our research since 2012.