What users are saying about
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Top Rated
308 Ratings
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Top Rated
172 Ratings

Optimizely

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Top Rated
308 Ratings
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Score 8.2 out of 101

VWO

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Top Rated
172 Ratings
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Score 7.7 out of 101

Likelihood to Recommend

Optimizely

Optimizely is a great tool to get you up and running with A/B testing quickly without sacrificing quality. The WYSIWYG editor mode is passable for someone without html and javascript knowledge, but to get the most out of the tool you'll definitely want to have a developer that is fluent in javascript. As of a few months ago Optimizely now offers server side (or full stack) testing in addition to their client side testing. This is an additional feature you have to pay for, but if you have the need and teams to support server side testing it allows you to test a lot of different things you won't get out of client side testing.
Grant Wilkins profile photo

VWO

VWO is a great option for agencies when conducting conversion optimization testing, as it is a relatively intuitive and easy to use platform with a robust set of capabilities.
Joseph Collins profile photo

Feature Rating Comparison

Testing and Experimentation

Optimizely
7.5
VWO
7.4
a/b experiment testing
Optimizely
8.4
VWO
8.2
Split URL testing
Optimizely
7.9
VWO
9.1
Multivariate testing
Optimizely
8.4
VWO
7.3
Mutli-page/funnel testing
Optimizely
7.6
VWO
6.4
Cross-browser testing
Optimizely
7.9
VWO
8.2
Mobile app testing
Optimizely
7.1
VWO
Test significance
Optimizely
7.2
VWO
7.3
Visual / WYSIWYG editor
Optimizely
7.1
VWO
7.3
Advanced code editor
Optimizely
6.9
VWO
9.1
Page surveys
Optimizely
7.0
VWO
Visitor recordings
Optimizely
7.6
VWO
6.4
Preview mode
Optimizely
7.4
VWO
6.4
Test duration calculator
Optimizely
6.7
VWO
6.4
Experiment scheduler
Optimizely
8.2
VWO
Experiment workflow and approval
Optimizely
7.2
VWO
Dynamic experiment activation
Optimizely
7.9
VWO
Client-side tests
Optimizely
7.5
VWO
Server-side tests
Optimizely
7.1
VWO
Mutually exclusive tests
Optimizely
7.8
VWO

Audience Segmentation & Targeting

Optimizely
8.1
VWO
8.2
Standard visitor segmentation
Optimizely
8.2
VWO
9.1
Behavioral visitor segmentation
Optimizely
8.0
VWO
7.3
Traffic allocation control
Optimizely
8.5
VWO
9.1
Website personalization
Optimizely
7.8
VWO
7.3

Results and Analysis

Optimizely
7.8
VWO
7.0
Heatmap tool
Optimizely
8.2
VWO
6.4
Click analytics
Optimizely
8.1
VWO
6.4
Scroll maps
Optimizely
7.7
VWO
6.4
Form fill analysis
Optimizely
8.2
VWO
Conversion tracking
Optimizely
8.0
VWO
8.2
Goal tracking
Optimizely
8.0
VWO
8.2
Test reporting
Optimizely
7.8
VWO
7.3
Results segmentation
Optimizely
7.4
VWO
5.5
CSV export
Optimizely
6.6
VWO
Experiments results dashboard
Optimizely
7.8
VWO
8.2

Pros

Optimizely

  • Quickly and easily set up new A/B tests. Some tests can be completed in only a few minutes.
  • A robust results engine. It automatically creates segments based off URL parameters and other common criteria (new vs returning) in addition to predefined criteria you set up.
  • The support of the Optimizely implementation team and customer care is fantastic. Optimizely easily ranks as one of our best third party software vendors. They provide not just knowledge of how to use the tool, but how to build a culture around testing and experimentation within your company.
  • Acts as a great lightweight content management system for making temporary changes. We use Optimizely to make changes for 100% of traffic for controlling scheduled promotions and also bug fix patches while waiting for permanent fixes.
Grant Wilkins profile photo

VWO

  • VWO's adaptability and customization options allow us to tailor our tests to very unique scenarios.
  • The overall ease-of-use of the platform allows us to quickly build and implement tests, without specialized coding knowledge, which means faster results for our clients.
Joseph Collins profile photo

Cons

Optimizely

  • Geo-targeting for tests does not allow you to use ZIP Codes.
  • URL targeting does not have a mass upload option for lists of unrelated URLs. It does have substring and regular expression matches that cover most other needs.
  • The preview feature rarely works as expected. We run tests on a dedicated testing environment to preview and do QA.
Grant Wilkins profile photo

VWO

  • Heatmaps loaded very slow. We have very long form sales copy and VWO could not load the pages with a heatmap view a majority of the time.
  • Google and Facebook slap. We were shutdown from running ads to pages that had VWO embedded in them as it was perceived as cloaking. This was the biggest issue for us as we rely on optimizing for display spend.
Thomas (TJ) Tate profile photo

Likelihood to Renew

Optimizely

Optimizely 9.0
Based on 43 answers
I'm starting to lean more towards VWO because of the added value and pricing.
Brynn Arego profile photo

VWO

VWO 8.6
Based on 20 answers
It's great value and we think we've ironed out all the major teething troubles. However, if we experience any more bugs or problems that significantly slow us down then we're seriously considering switching to Optimizely, which I haven't personally tested but have heard great things about from my CRO peers
Tom Kerwin profile photo

Usability

Optimizely

Optimizely 7.7
Based on 31 answers
It is easy to use and quickly learn. Setup is simple with the snippet and tracking is easy to interpret.
Brynn Arego profile photo

VWO

VWO 8.2
Based on 2 answers
I gave Visual Website Optimizer a rating of 8 because it is overall a great product to use. Setting up and keeping track of various tests is easy and straight forward. The only reason why this product is not rated higher is because the support documents online leave a lot of room for improvement.
No photo available

Reliability and Availability

Optimizely

Optimizely 9.0
Based on 5 answers
Web interface is nearly always available. Javascript snippet (which actually runs the test) is distributed on a CDN for near-constant availability.
Albert Wavering profile photo

VWO

VWO 9.1
Based on 3 answers
No answer on this topic is available.

Performance

Optimizely

Optimizely 6.0
Based on 5 answers
We have had some issues with screen flicker when loading experiment content. We had to dial back some of the creative changes to load smaller files.
Shawn Daley profile photo

VWO

VWO 8.2
Based on 1 answer
No answer on this topic is available.

Support

Optimizely

Optimizely 5.3
Based on 13 answers
Their technical engineers are experts on testing and their tool, and have always answered my questions promptly and accurately.
Douglas Wright profile photo

VWO

VWO 9.1
Based on 4 answers
While their online document support is lacking a simple email to their support team will almost always get responded to the next day. It has however taken more than one email to explain the problem to the support team till they understood the problem. The solution I was given also only half fixed the problem the rest I figured out on my own.
No photo available

Implementation

Optimizely

Optimizely 8.0
Based on 11 answers
It was super straight forward.I am a big fan.
Jane Morgan profile photo

VWO

VWO 9.1
Based on 3 answers
Very easy, and great support in case you find any challenges.
Ahmad Rahman profile photo

Alternatives Considered

Optimizely

One of Optimizely's biggest pluses is that it works on multiple platforms, which many other products do not. Another major factor was their evangelization not just of their product, but of conversion rate optimization and statistical relevance in general. Finally, when speaking with them, they didn't so much try to sell their product as they spoke to how it could integrate into our overall workflow.
George McMullen profile photo

VWO

VWO's vast range of features and comparable price made it a firm favourite against competitor websites. We've seen good results with the tool so far and it has proved to be an excellent project for increasing website conversion rate and overall ROI has met our KPI's. Moving forward, I'd like to see more advanced personalisation features from the tool in order for it to compete with some of the market leads tools on the market.
Ricky Marshall profile photo

Scalability

Optimizely

Optimizely 7.1
Based on 24 answers
With the option to add specific personalisation campaigns and targeting to the existing web testing tool the product is extremely scalable for all business usage and needs. For retailers, on site recommendations is also another valuable feature which can be added as part of the personalisation suite. Intelligent algorthims, to generate specific product recommendations to users is vital to our business.
Ashley Smith profile photo

VWO

VWO 8.2
Based on 1 answer
No answer on this topic is available.

Return on Investment

Optimizely

  • We find ourselves saving money by testing designs with bad CRO practices before we roll out.
  • The tool enables any test you want to run, your ROI will vary based on effort put in.
Jared Gardner profile photo

VWO

  • After running around 12 different scenario tests, we've seen incremental increases in conversion rate across our website booking journey, equivalent to thousands of pounds in incremental revenue.
  • VWO has helped us understand how customers interact with our website and has enabled us to reduce live chat and customer service actions
  • VWO has allowed us to develop our product offering and membership proposition so it is more relevant to our customers.
Ricky Marshall profile photo

Screenshots

Optimizely

Pricing Details

Optimizely

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

Optimizely Editions & Modules

Optimizely
Additional Pricing Details

VWO

General

Free Trial
Yes
Free/Freemium Version
Premium Consulting/Integration Services
Yes
Entry-level set up fee?
No

VWO Editions & Modules

VWO
Edition
TESTING
Get a Demo1
CONVERSION OPTIMIZATION
Get a Demo2
ENTERPRISE
Get a Demo3
1. The classic VWO A/B testing solution
2. The all-in-one platform for all your optimization needs
3. Customized solution with advanced AB testing and conversion optimization capabilities
Additional Pricing Details
For any additional information about pricing and plans, visit https://vwo.com/pricing/

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