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Head-to-head · AB Testing

Optimizely Web Experimentation vs VWO Testing

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Optimizely Web Experimentation #2 in AB Testing 9.1/10 Pricing on request ✓ 2 of 3 features Visit Optimizely
VWO Testing #4 in AB Testing 8.8/10 Pricing on request · 30-day trial Free trial✓ 2 of 3 features Visit Wingify

Optimizely Web Experimentation leads on 0 checks, VWO Testing on 1, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOptimizely Web Experimentation · 9.1/10
  • Free trialonly VWO Testing

Optimizely Web Experimentation scores higher on our rubric for ab testing: 9.1 against 8.8 out of 10; our editors rank them #2 and #4.

VWO Testing offers server-side tests; Optimizely Web Experimentation doesn't.

Optimizely Web Experimentation is the better fit for established teams focused on web experiments. VWO Testing is the better fit for teams wanting broad web and mobile testing.

  • Optimizely Web Experimentation fits best

    Established teams focused on web experiments

  • VWO Testing fits best

    Teams wanting broad web and mobile testing

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Optimizely Web Experimentation 9.1/10 Visit ↗ VWO Testing 8.8/10 Visit ↗
At a glance
Editor score 9.1 8.8
Ranking #2 in AB Testing #4 in AB Testing
Best for Established teams focused on web experiments Teams wanting broad web and mobile testing
Pricing model Paid Paid
Starting price Pricing on request —
Free plan Not checked yet —
Free trial — 30 days
Deployment Cloud Cloud, Mobile
Platforms Web Web, iOS, Android
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Optimizely Web Experimentation 2/3 · VWO Testing 2/3
Client-side tests ✓ (best) Not checked yet
Server-side tests — ✓ (best)
Visual editor ✓ ✓
Specs
Testing methods Not checked yet Not checked yet
Monthly tested users Not checked yet Not checked yet
Analytics integrations Not checked yet Not checked yet
Our review
Pros
  • Supports A/B, multivariate, and split-URL experiments
  • Visual editor plus audience targeting and segmentation
  • Includes experiment management and statistical results analysis
  • Supports A/B, multivariate, split-URL, mobile, and server-side tests
  • Visual and code editors with targeting, metrics, heatmaps, and recordings
  • Feature flags, rollouts, and compliance coverage including SOC 2 and GDPR
Cons
  • Web-only platform for digital experience experiments
  • Client-side testing focus; server-side testing is not included
  • Pricing requires contacting Optimizely's sales team
  • Pricing follows a contact-sales model
  • No free plan is offered; the trial lasts 30 days
  • 24x7 support, SSO, and API access are listed only for Enterprise
Our verdict

Optimizely Web Experimentation is a hosted platform for marketing, product, and growth teams that need controlled experiments on websites and other digital experiences. It combines A/B testing, multivariate testing, and split-URL…

Read the review →

VWO Testing was an experimentation product for websites, mobile apps, and server-side experiences. It supported A/B, multivariate, split-URL, multi-page, cross-domain, device-specific, and AI-assisted experiments, with visual and code…

Read the review →
  1. Optimizely Web ExperimentationAB Testing 9.1Pricing on request
  2. VWO TestingAB Testing 8.8Pricing on request · 30-day trial

Strengths and trade-offs

  • Optimizely Web Experimentation — where it wins

    • Supports A/B, multivariate, and split-URL experiments
    • Visual editor plus audience targeting and segmentation
    • Includes experiment management and statistical results analysis

    Where it doesn't

    • Web-only platform for digital experience experiments
    • Client-side testing focus; server-side testing is not included
    • Pricing requires contacting Optimizely's sales team
  • VWO Testing — where it wins

    • Supports A/B, multivariate, split-URL, mobile, and server-side tests
    • Visual and code editors with targeting, metrics, heatmaps, and recordings
    • Feature flags, rollouts, and compliance coverage including SOC 2 and GDPR

    Where it doesn't

    • Pricing follows a contact-sales model
    • No free plan is offered; the trial lasts 30 days
    • 24x7 support, SSO, and API access are listed only for Enterprise
  • Optimizely Web Experimentation9.1/10 · Pricing on request

    A focused web testing suite for established teams running targeted experiments.

    Visit OptimizelyFull verdict →
  • VWO Testing8.8/10 · Pricing on request · 30-day trial

    Broad experimentation coverage for teams testing websites, apps, and server-side experiences.

    Visit WingifyFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update