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Optimizely lets you manage and run A/B tests and personalize your website for visitors. VWO provides a data-driven testing solution that connects every step in the visitor journey to impact your conversion rates.Request VWO Demo View Feature Comparison
Optimizely allows you to manage your A/B testing program and offers robust personalization options. With VWO, you can bring your entire conversion optimization program on a single platform—track business goals, analyze visitor behavior, build data-driven hypotheses, run tests, and personalize content. By connecting visitor insights with tests, you can develop a continuously scalable testing program that optimizes every step in the visitor conversion funnel.
of companies that follow a structured approach to conversion optimization
see an improvement in their conversion rates as opposed to only 64% of companies that don’t follow a structured approach.
VWO uses asynchronous code to serve your campaign data, compared to synchronous code used by Optimizely.
Simply put, Asynchronous means that the code will contact VWO servers in the background, download and process the test package while the rest of your page continues to load and render in the browser as usual. It’s what keeps your visitors’ screens from flickering.
Optimizely’s Synchronous code makes the browser wait until Optimizely can deliver the test package, long enough for visitors to notice.
And in the improbable case of our servers being unavailable, the original page gets loaded, ensuring that your visitors' experiences remain unaffected.
Whatever your business needs are, VWO can deliver.
If you’re just starting out and want to see how testing can affect the conversion rate, choose the VWO Web Testing Solution that allows you to run tests (A/B, Multivariate, and Split) and conduct basic visitor behavior analysis by using Heatmaps.
To continuously impact your bottom line with better conversions, choose the all-in-one Conversion Optimization Platform that enables you to track testing goals, analyze visitor behavior, define goals and conversion funnels, run tests, and personalize content.
VWO lets you make smarter business decisions from your testing campaigns by choosing from among 3 different modes of testing:
Gets you faster results. Great for finding quick trends.
Helps you make smarter decisions. Ideal for most tests.
Allows you to plan better. Best for revenue-critical tests when you want to absolutely minimize potential loss.
If your team wants to run tests on multiple domains from a single account, that’s not a problem. VWO has a flexible pricing plan that allows you to pay by the average number of unique monthly visitors on your website, no matter how many domains you run tests on within that visitor quota.
Spend more time producing results than looking for answers, with in-app guided onboarding and up-to-date knowledge base of all the information you would ever need.
Better still, our dedicated Customer Success Managers will help you set up your Enterprise account and get testing immediately.
However, if you do need to contact VWO, you can count on hands-on support across multiple channels, whenever you want.
Director of Growth Marketing
Terrific support! Extremely responsive and helpful as always. We've been clients of VWO for 3+ years and couldn't be happier with your platform. Keep up the great work!
You have a wonderful support team! I really appreciate the fast response and the professional assistance. Thank You!
See how Optimizely compares with VWO
|Testing Quota Usage||Use as you like||Restricted usage|
|Visitor Counting Logic||Count once per month across all campaigns (In the CRO platform)||Count once per month across all campaigns|
|Server-Side Testing||-||Available only in Optimizely X|
|Statistics||Bayesian||Sequential Statistical Method|
|Support||Available 24x7 (email, phone, chat, and in-app)||Limited support (separate priority support add-on)|