Which is better, Optimizely or WhatUsersDo?

Optimizely edges out WhatUsersDo based on user ratings across 806 reviews. That said, the best pick depends on your workflow — WhatUsersDo may be a stronger fit for specific team sizes or use cases. Review the full comparison to decide.

What are the main differences between Optimizely and WhatUsersDo?

Key differences between Optimizely and WhatUsersDo include target audience (Optimizely targets Freelancers / Consultants while WhatUsersDo serves Individuals); free trial availability (WhatUsersDo offers one, Optimizely does not). Use the Spotsaas comparison table to evaluate each dimension before deciding.

Do both Optimizely and WhatUsersDo offer a Free trial?

WhatUsersDo offers Free Trial, but Optimizely does not.

Who are the typical users of Optimizely?

Optimizely is designed for Freelancers / Consultants, Large Enterprises, Medium Business, Small Business.

Who are the typical users of WhatUsersDo?

WhatUsersDo is designed for Individuals, Large Enterprises, Medium Business, Small Business.

What is the starting price of Optimizely and WhatUsersDo?

Pricing details for both Optimizely and WhatUsersDo are unavailable.

What are the best alternatives to Optimizely?

Some top alternatives to Optimizely include VWO Testing, AB Tasty, Google Optimize, Webtrends Optimize, Adobe Target.

What are the best alternatives to WhatUsersDo?

Some top alternatives to WhatUsersDo include VWO Testing, User Insights, UserTesting, UserInsights.com, UserLook.

Optimizely vs WhatUsersDo vs VWO Testing Comparison

Last updated: May 20, 2026

Optimizely

4.3(806 reviews)

Starting at Contact for pricing

Freelancers / Consultants
Large Enterprises

Optimizely is a web software platform that allows to create, launch, and manage AB tests for website. Optimizely's intelligent technology intelligently recommends changes based on the data. This allows any online busines…

View Pricing Read Reviews

WhatUsersDo

3.7(24 reviews)

Starting at Contact for pricing

Free Trial
Individuals
Large Enterprises

The WhatUsersDo AB Testing Software gives the power to experiment with online marketing messages and give real data about what is working. The WUD AB Testing Software makes it easy for non-techies to run AB tests, see wh…

View Pricing Read Reviews

VWO Testing

4.4(289 reviews)

Starting at Contact for pricing

Free Trial
Large Enterprises
Medium Business

VWO is an all-in-one AB testing platform that helps to boost conversion. It has powerful A/B testing capabilities, heatmaps, funnel analysis, real time statistics and an extensive data explorer. It allows to run tests on…

View Pricing Read Reviews

Optimizely leads on user satisfaction with a 4.3-star rating across 806 reviews.

SpotSaaS Analysis

OptimizelyWhatUsersDoVWO Testing

The core difference between Optimizely and WhatUsersDo lies in Optimizely's focus on enabling mid-to-large teams to conduct A/B testing independently, while WhatUsersDo's offerings are less defined and may cater to a broader audience. Optimizely is ideal for marketing or product teams in larger organizations seeking scalable experimentation, whereas WhatUsersDo may appeal to companies looking for user testing solutions without specific size constraints.

- Best for mid-to-large teams - Enables flexible A/B testing - Minimal developer assistance required - Intuitive interface for marketing and product teams - Scalable experimentation for e-commerce or UX - Suitable for companies with 51+ employees

- User testing solutions - Less defined target audience - Potentially suitable for various company sizes - Focus on understanding user behavior - May not require extensive technical expertise - Offers insights into user experience

Optimizely vs WhatUsersDo vs VWO Testing — at a glance

Feature	Optimizely	WhatUsersDo	VWO Testing
Rating	4.3 / 5	3.7 / 5	4.4 / 5
Reviews	806	24	289
Starting price	Contact for pricing	Contact for pricing	Contact for pricing
Free trial	No	Yes	Yes
Free version	No	No	No
Best for	Freelancers / Consultants, Large Enterprises, Medium Business	Individuals, Large Enterprises, Medium Business	Large Enterprises, Medium Business, Small Business
Category	AB Testing Software	AB Testing Software	AB Testing Software
Platforms	SaaS/Web/Cloud, Installed - Mac	SaaS/Web/Cloud	SaaS/Web/Cloud
API	Available	—	Available
Support modes	24/7 (Live rep), Online	Online	24/7 (Live rep), Online
Certifications	SOC 2, GDPR, ISO 27001	SOC 2	GDPR
Data residency	Global	US	Global

Key differences between Optimizely and WhatUsersDo

Free trial: WhatUsersDo offers a free trial; Optimizely does not.
Target audience: Optimizely is built for Freelancers / Consultants and Large Enterprises, while WhatUsersDo targets Individuals and Large Enterprises.
User satisfaction: Optimizely scores higher with a 4.3-star average.
Deployment: Optimizely supports SaaS/Web/Cloud, Installed - Mac; WhatUsersDo supports SaaS/Web/Cloud.

Compare Optimizely vs WhatUsersDo vs VWO Testing — and walk away knowing which one fits.

Which tool fits your team best

Which is actually cheaper for your team size

Where each product wins, per real buyers

Most AB Testing Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.

Biggest differences

Features

Pricing

Buying details

Security

Buyer feedback

Integrations

Product tour

Other options

	Optimizely (166) Talk to an expert Talk to an expert	WhatUsersDo (20) Talk to an expert Talk to an expert

Biggest differences

Affiliate Disclosure

Start here before you go deeper into features.

Optimizely

Best for mid-to-large teams running flexible A/B tests with minimal developer help.

Choose if

You need an intuitive interface for marketing or product teams to run tests independently.
Your company size is 51+ employees requiring scalable experimentation for e-commerce or UX.
You want intelligent, data-driven change recommendations to optimize website visitor conversions.

Consider alternatives if

You are a freelancer or very small business with a limited budget.
Your team lacks any technical skills needed for advanced testing or HTML tweaks.

WhatUsersDo

Best for

Individuals, Large Enterprises, Medium Business

VWO Testing

Best for SMBs needing powerful, visual A/B testing with detailed traffic segmentation.

Choose if

You want a visual editor to create tests without engineering help
Your team needs detailed traffic segmentation for precise conversion insights
You require an all-in-one platform that scales with growing testing needs

Consider alternatives if

You need extensive app integrations beyond a limited marketplace
Your team lacks technical support and struggles with complex test analysis

Optimizely typically suits Freelancers / Consultants and Large Enterprises. WhatUsersDo tends to fit Individuals and Large Enterprises better. The right choice depends on your team size, workflow, and whether a free trial matters.

Description	Optimizely is a web software platform that allows to create, launch, and manage AB tests for website. Optimizely's intelligent technology intelligently recommends changes based on the data. ... Read More about Optimizely	The WhatUsersDo AB Testing Software gives the power to experiment with online marketing messages and give real data about what is working. The WUD AB Testing Software makes it easy for ... Read More about WhatUsersDo	VWO is an all-in-one AB testing platform that helps to boost conversion. It has powerful A/B testing capabilities, heatmaps, funnel analysis, real time statistics and an extensive data ... Read More about VWO Testing
Free Trial Availability	No free trial	Get Free Trial	Get Free Trial
Spotsaas Score What's this? ↗	9.8/10	8.1/10	8.8/10
User Ratings Based on verified Spotsaas reviews	4.3 (806)	3.7 (24)	4.4 (289)
Best Company Size	51-500 employees500+ employees	—	Small BusinessMedium Business
	Get pricing help	Get pricing help	Visit website

Software Demo

Demo

Need a second opinion?

Get shortlist help from a software advisor

Share your priorities, budget, and team needs, and we’ll help you narrow the options and understand the tradeoffs before you talk to vendors.

How do Optimizely, WhatUsersDo and VWO Testing Compare on Features?

Total Features	9 Features	3 Features	10 Features
Unique Features	No unique features	No unique features	No unique features
	Get Quote	Get Quote	Visit website

Compare Optimizely, WhatUsersDo and VWO Testing on pricing

Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.

Pricing Option
Pricing Plans	Not Available	Not Available	Not Available
Pricing Page
	View detailed pricing	View detailed pricing	View detailed pricing

Other Details

Organization Types supported	Freelancers Small Business Large Enterprises Medium Business Individuals	Freelancers Small Business Large Enterprises Medium Business Individuals	Freelancers Small Business Large Enterprises Medium Business Individuals
Platforms Supported	Browser Based (Cloud) Installed - Mac Mobile - Android Mobile - iOS Browser Based (Cloud)	Browser Based (Cloud) Installed - Mac Mobile - Android Mobile - iOS Browser Based (Cloud)	Browser Based (Cloud) Installed - Mac Mobile - Android Mobile - iOS Browser Based (Cloud)
Modes of support	24/7 (Live rep) Business Hours Online	24/7 (Live rep) Business Hours Online	24/7 (Live rep) Business Hours Online
API Support	Available	Not Available	Available
	Get help choosing	Get help choosing	Visit Website

Security & Compliance

Certifications, data handling, and security controls for IT and compliance evaluators.

SOC 2	✓ Yes	✓ Yes
HIPAA	✗ No	✗ No
GDPR	✓ Yes	—
ISO 27001	✓ Yes	—
Single Sign-On (SSO)	✓ Yes	—
Multi-Factor Auth (MFA)	✓ Yes	—
Data Encryption	✓ Yes	—
Audit Logs	✓ Yes	—
Data Residency	🌐 Global	🇺🇸 US

Optimizely vs WhatUsersDo User Reviews & Rating Comparison

User Ratings	4.3 (based on 806 reviews)	3.7 (based on 24 reviews)	4.4 (based on 289 reviews)
Rating Distribution	111 46 5 1 3	6 2 3 3 6	228 126 16 4 8
Spotsaas Editor’s POV generated by AI	Buyer sentiment Users generally appreciate Optimizely's ease of use and strong support but note concerns about pricing and technical limitations for advanced testing. What buyers like Ease of use Customer support Flexibility in running experiments Common complaints Pricing and cost concerns Technical challenges with advanced features	Buyer sentiment Buyer sentiment is mixed to positive across 20 reviews, with clear strengths and a few common watchouts. What buyers like No coding required Mobile responsive pages Multi-platform support Common complaints Limited advanced features May require training Not suitable for complex tests	Buyer sentiment Overall positive sentiment highlights ease of use and powerful features, tempered by some concerns over analysis complexity and integration limitations. What buyers like Ease of use Powerful visual editor Detailed traffic segmentation Common complaints Complexity of test analysis Limited integrations marketplace
Pros and Cons	Ability to run A/B tests without developer assistance Intuitive user interface suitable for non-developers Responsive customer support with prompt bug fixes Pricing perceived as high and not transparent Requires some HTML knowledge for advanced testing features	No coding required for easy test setup. Mobile responsive pages enhance user experience. Supports multiple platforms for broader testing. Limited advanced features may restrict complex testing. May require some training for optimal use.	Powerful visual editor enabling test creation without engineering resources User-friendly traffic segmentation and detailed experiment analysis Comprehensive all-in-one platform that scales with user needs Test analysis can be difficult to interpret accurately Features and customizations may intimidate newcomers without support
Positive Reviews	No reviews available for the product	No reviews available for the product	No reviews available for the product
Negative Reviews	No reviews available for the product	No reviews available for the product	No reviews available for the product
	Read reviews	Read reviews	Read reviews

List of Customers

Customers	Optimizely_customers_0 Optimizely_customers_1 Optimizely_customers_2	Branded3 Lostmy.name Lovehoney	VWO Testing_customers_0 VWO Testing_customers_1 VWO Testing_customers_2

Media and Screenshots

Screenshots	11 Screenshots	No screenshots available.
Videos	1 Videos	1 Videos

Alternatives

Alternatives	VWO Testing 4.4 AB Tasty 4.5 Google Optimize 4.1	VWO Testing 4.4 User Insights 4.6 UserTesting 4.1	Optimizely 4.3 Apptimize 4.2 AB Tasty 4.5

Frequently asked questions

Which is better, Optimizely or WhatUsersDo?: Optimizely edges out the other on user ratings (4.3 vs 3.7). That said, the best pick depends on your use case — use the comparison tables above to evaluate each dimension.
Do Optimizely and WhatUsersDo offer a free trial?: WhatUsersDo offers a free trial. Optimizely does not.
What is the starting price of Optimizely vs WhatUsersDo?: Optimizely starts at Contact for pricing. WhatUsersDo starts at Contact for pricing.
What are the top alternatives to Optimizely?: Top alternatives to Optimizely include VWO Testing, AB Tasty, Google Optimize, Webtrends Optimize, Adobe Target.
What are the top alternatives to WhatUsersDo?: Top alternatives to WhatUsersDo include VWO Testing, User Insights, UserTesting, UserInsights.com, UserLook.

Optimizely vs WhatUsersDo vs VWO Testing Comparison

Optimizely

WhatUsersDo

VWO Testing

Optimizely vs WhatUsersDo vs VWO Testing — at a glance

Key differences between Optimizely and WhatUsersDo

Compare Optimizely vs WhatUsersDo vs VWO Testing — and walk away knowing which one fits.

Optimizely

WhatUsersDo

Biggest differences

Description

Free Trial Availability

Spotsaas Score

User Ratings

Best Company Size

Software Demo

Demo

Get shortlist help from a software advisor

How do Optimizely, WhatUsersDo and VWO Testing Compare on Features?

Compare Optimizely, WhatUsersDo and VWO Testing on pricing

Other Details

Organization Types supported

Platforms Supported

Modes of support

API Support

Security & Compliance

Optimizely vs WhatUsersDo User Reviews & Rating Comparison

List of Customers

Customers

Media and Screenshots

Screenshots

Videos

Alternatives

Related Blogs and Articles for Ab Testing Software

Frequently asked questions