LaunchDarkly vs. Optimizely Web Experimentation

Overview
ProductRatingMost Used ByProduct SummaryStarting Price
LaunchDarkly
Score 9.3 out of 10
N/A
LaunchDarkly provides a feature management platform that enables DevOps and Product teams to use feature flags at scale. This allows for greater collaboration among team members, and increased usability testing before full-scale feature deployment.N/A
Optimizely Web Experimentation
Score 8.7 out of 10
N/A
Optimizely Web Experimentation empowers teams to conduct experiments (without having to rely on developer resources) in order to test various user interactions, make website changes backed by data, and personalize customer experiences.N/A
Pricing
LaunchDarklyOptimizely Web Experimentation
Editions & Modules
No answers on this topic
No answers on this topic
Offerings
Pricing Offerings
LaunchDarklyOptimizely Web Experimentation
Free Trial
YesYes
Free/Freemium Version
NoNo
Premium Consulting/Integration Services
NoYes
Entry-level Setup FeeNo setup feeOptional
Additional Details
More Pricing Information
Community Pulse
LaunchDarklyOptimizely Web Experimentation
Considered Both Products
LaunchDarkly
Chose LaunchDarkly
LaunchDarkly stood out to us because it put control of the application within the hands of our engineers. We didn't want to allow business users to manipulate the production site via a third-party tool. Instead, our focus was on delivering faster as an engineering team.
Optimizely Web Experimentation
Chose Optimizely Web Experimentation
Of the tools we've explored, none have the full suite of testing with in depth results analysis that Optimizely provides so we have not switched.
Top Pros
Top Cons
Features
LaunchDarklyOptimizely Web Experimentation
Testing and Experimentation
Comparison of Testing and Experimentation features of Product A and Product B
LaunchDarkly
-
Ratings
Optimizely Web Experimentation
8.0
95 Ratings
7% below category average
a/b experiment testing00 Ratings9.395 Ratings
Split URL testing00 Ratings8.577 Ratings
Multivariate testing00 Ratings8.880 Ratings
Multi-page/funnel testing00 Ratings8.275 Ratings
Cross-browser testing00 Ratings7.452 Ratings
Mobile app testing00 Ratings7.640 Ratings
Test significance00 Ratings8.587 Ratings
Visual / WYSIWYG editor00 Ratings8.078 Ratings
Advanced code editor00 Ratings7.570 Ratings
Page surveys00 Ratings6.917 Ratings
Visitor recordings00 Ratings8.418 Ratings
Preview mode00 Ratings8.085 Ratings
Test duration calculator00 Ratings6.959 Ratings
Experiment scheduler00 Ratings8.157 Ratings
Experiment workflow and approval00 Ratings6.539 Ratings
Dynamic experiment activation00 Ratings7.436 Ratings
Client-side tests00 Ratings9.252 Ratings
Server-side tests00 Ratings9.121 Ratings
Mutually exclusive tests00 Ratings8.540 Ratings
Audience Segmentation & Targeting
Comparison of Audience Segmentation & Targeting features of Product A and Product B
LaunchDarkly
-
Ratings
Optimizely Web Experimentation
8.6
89 Ratings
3% below category average
Standard visitor segmentation00 Ratings8.987 Ratings
Behavioral visitor segmentation00 Ratings8.367 Ratings
Traffic allocation control00 Ratings9.484 Ratings
Website personalization00 Ratings7.959 Ratings
Results and Analysis
Comparison of Results and Analysis features of Product A and Product B
LaunchDarkly
-
Ratings
Optimizely Web Experimentation
8.3
86 Ratings
3% below category average
Heatmap tool00 Ratings9.113 Ratings
Click analytics00 Ratings8.733 Ratings
Scroll maps00 Ratings8.117 Ratings
Form fill analysis00 Ratings8.328 Ratings
Conversion tracking00 Ratings8.744 Ratings
Goal tracking00 Ratings8.475 Ratings
Test reporting00 Ratings8.178 Ratings
Results segmentation00 Ratings8.048 Ratings
CSV export00 Ratings7.650 Ratings
Experiments results dashboard00 Ratings8.049 Ratings
Best Alternatives
LaunchDarklyOptimizely Web Experimentation
Small Businesses
Kameleoon
Kameleoon
Score 9.5 out of 10
Kameleoon
Kameleoon
Score 9.5 out of 10
Medium-sized Companies
Kameleoon
Kameleoon
Score 9.5 out of 10
Dynamic Yield
Dynamic Yield
Score 9.1 out of 10
Enterprises
Kameleoon
Kameleoon
Score 9.5 out of 10
Kameleoon
Kameleoon
Score 9.5 out of 10
All AlternativesView all alternativesView all alternatives
User Ratings
LaunchDarklyOptimizely Web Experimentation
Likelihood to Recommend
9.5
(28 ratings)
8.8
(180 ratings)
Likelihood to Renew
7.0
(1 ratings)
8.5
(45 ratings)
Usability
7.4
(26 ratings)
9.0
(57 ratings)
Availability
10.0
(1 ratings)
10.0
(7 ratings)
Performance
8.1
(26 ratings)
7.3
(6 ratings)
Support Rating
10.0
(1 ratings)
10.0
(16 ratings)
Online Training
-
(0 ratings)
3.0
(1 ratings)
Implementation Rating
9.0
(1 ratings)
8.0
(11 ratings)
Configurability
8.0
(1 ratings)
6.0
(1 ratings)
Ease of integration
8.0
(1 ratings)
-
(0 ratings)
Product Scalability
10.0
(1 ratings)
8.0
(92 ratings)
Vendor post-sale
8.0
(1 ratings)
-
(0 ratings)
Vendor pre-sale
10.0
(1 ratings)
-
(0 ratings)
User Testimonials
LaunchDarklyOptimizely Web Experimentation
Likelihood to Recommend
LaunchDarkly
If a new feature should be added but unsure of how it will actually work or how users will accept the new enhancement or change, this tool allows you test and measure initial results. This saves so much time and energy knowing the results before it is deployed and might have low user adoption or acceptance.
Read full review
Optimizely
This is our second testing platform, and is by far the best we have leveraged. Its intuitive in how you are able to build tests. Tracking is easy to set up within the visual editor or as a capability in URL tracking. The reporting tab does need more filtering capabilities for custom metrics.
Read full review
Pros
LaunchDarkly
  • A/B or Multi Variant Testing as a methodology to gather insight from customer usage. Experimentation as a feature within LaunchDarkly offers information around the success of one variant over another and whether the experiment has reached statistical significance.
  • Being able to decouple deployment of code from the release of a feature is hugely valuable.
  • Development teams are empowered to manage features within their production applications for reliability or testing purposes.
Read full review
Optimizely
  • Considers every kind of experiment from simple code change, code additions, code removal, javascript functions, CSS changes, and split landing redirects.
  • Very friendly UC interface for easy navigation of implementation of pages, click events, experiment set up, and metric set up.
  • The ability to let me know when something has reach stat sig without having to do complicated math on my own
  • ability to carry UTM parameters through landing page redirects with a click of a button.
Read full review
Cons
LaunchDarkly
  • Limited number of users on cheaper plans that is limiting our ability to audit log who is making changes.
  • Some of our engineers are confused between flags and segments and have set up items incorrectly.
  • Better documented support for React with Typescript.
Read full review
Optimizely
  • Hard to use extensions without some knowledge of HTML/CSS
  • Inconsistent user counts between GA & Optimizely when it comes to calculating MAUs, hard to be able to forecast budget and overages when our source of truth (GA) differs from our testing platform (Optimizely)
  • Impressions model doesn't support scaling personalization experiences - hard to run a serious data driven testing program when you have to cut tests short before 14 days (ideal length to get to any statistical read) in order to save on impressions
Read full review
Likelihood to Renew
LaunchDarkly
It fits out business case
Read full review
Optimizely
Because it's an incredible and essential tool for my line of work as a conversion optimization specialist. Really couldn't do my job nearly as effectively without it. It's paid for itself many times over and I feel like I'm only beginning to unlock the tools potential.
Read full review
Usability
LaunchDarkly
It's very easy to create new feature flags and set them properly. It is more difficult to get LaunchDarkly integrated within a distributed system so that flags can be used. Especially on stateless servers where gating features by user is not easy. Overall though, it is very easy to get started and I like how simple it is to use.
Read full review
Optimizely
Usability is mostly great. I like the WYSIWYG functionality and adding in real code is simple as well. It's easy to target specific pages or audiences. I've knocked a couple of points off because of how difficult it is to set up URL redirect experiments, confusion around creating pages, and lack of data that can be further analyzed.
Read full review
Reliability and Availability
LaunchDarkly
No issue with availability at all
Read full review
Optimizely
I would rate Optimizely Web Experimentation's availability as a 10 out of 10. The software is reliable and does not experience any application errors or unplanned outages. Additionally, the customer service and technical support teams are always available to help with any issues or questions.
Read full review
Performance
LaunchDarkly
From what I have seen, LaunchDarkly integrates well with your code and also services you might have in your tech ecosystem. We use Jenkins for automation and we were able to use it to build pipelines to automate the control of LaunchDarkly toggles in our code.
Read full review
Optimizely
I would rate Optimizely Web Experimentation's performance as a 9 out of 10. Pages load quickly, reports are complete in a reasonable time frame, and the software does not slow down any other software or systems that it integrates with. Additionally, the customer service and technical support teams are always available to help with any issues or questions.
Read full review
Support Rating
LaunchDarkly
The overall support is very responsive
Read full review
Optimizely
They always are quick to respond, and are so friendly and helpful. They always answer the phone right away. And [they are] always willing to not only help you with your problem, but if you need ideas they have suggestions as well.
Read full review
Online Training
LaunchDarkly
No answers on this topic
Optimizely
The tool itself is not very difficult to use so training was not very useful in my opinion. It did not also account for success events more complex than a click (which my company being ecommerce is looking to examine more than a mere click).
Read full review
Implementation Rating
LaunchDarkly
Yes I do.
Read full review
Optimizely
In retrospect: - I think I should have stressed more demo's / workshopping with the Optimizely team at the start. I felt too confident during demo stages, and when came time to actually start, I was a bit lost. (The answer is likely I should have had them on-hand for our first install.. they offered but I thought I was OK.) - Really getting an understanding / asking them prior to install of how to make it really work for checkout pages / one that uses dynamic content or user interaction to determine what the UI does. Could have saved some time by addressing this at the beginning, as some things we needed to create on our site for Optimizely to "use" as a trigger for the variation test. - Having a number of planned/hoped-for tests already in-hand before working with Optimizely team. Sharing those thoughts with them would likely have started conversations on additional things we needed to do to make them work (rather than figuring that out during the actual builds). Since I had development time available, I could have added more things to the baseline installation since my developers were already "looking under the hood" of the site.
Read full review
Alternatives Considered
LaunchDarkly
LaunchDarkly stood out to us because it put control of the application within the hands of our engineers. We didn't want to allow business users to manipulate the production site via a third-party tool. Instead, our focus was on delivering faster as an engineering team.
Read full review
Optimizely
Overall, the tools we compared against were great, but we went with Optimizely because it has all the features we needed and has the market leadership that gave us trust we would be successful in our experimentation efforts.
Read full review
Scalability
LaunchDarkly
The platform didn't go down since we implemented it
Read full review
Optimizely
While granted, I am not the one making the changes to deploy the software; it seems basically as simple as placing the optimized snippet on your site. If you place it in the header, it should reach across your entire site easily. I do think the test setup can be a bit temperamental at times, and having too many cooks in the kitchen can lead to errors. So, I would caution how many people have the access needed to make actual changes.
Read full review
Return on Investment
LaunchDarkly
  • Improved developer experience with some teams moving to Trunk-based Development.
  • Increased deployment frequency due to smaller code releases.
  • Validation of the technical and business value of work is achieved more quickly through smaller pieces of work and through experimenting with a small group of users before a feature gets to 100% of customers.
Read full review
Optimizely
  • Customer retention: We've reduced subscription service client churn by 20%+ using optimized unsubscribe flows.
  • Risk mitigation: Testing into full site redesigns has saved clients millions of dollars.
  • Feature prioritization: Identifying what painted door changes add value has allowed developers to focus on changes that add hundreds of thousands or even millions to the bottom line.
Read full review
ScreenShots

LaunchDarkly Screenshots

Screenshot of DashboardScreenshot of Dashboard - Feature Flag New SearchScreenshot of Target Individual UsersScreenshot of Target Users By Rule MatchScreenshot of Approval Settings Per EnvironmentScreenshot of Experiments Dashboard

Optimizely Web Experimentation Screenshots

Screenshot of the visual editor, used to make changes to the appearance and layout of a website.Screenshot of the results dashboard that displays experiment results.Screenshot of the integrations page, where integrations can be enabled.Screenshot of Advanced Audience Targeting: Custom Real-Time Segments provide customers with the ability to create rapidly-updating segments which can be used as audiences for testing or personalization. These segments can be based on profile data, omni-channel behaviors, and AI-based observations.Screenshot of AI Content Suggestions: AI-powered suggestions in the Visual Editor accelerate ideation.Screenshot of Extensions for Edge: reusable elements minimize developer dependency when launching multiple tests with the same element.