Head-to-head · AB Testing
Optimizely Web Experimentation vs VWO Testing
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
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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 | ||
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| Cons |
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| 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 → |
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 →
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- VWO Testing vs Convert Experiences
- VWO Testing vs AB Tasty
All AB testing comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






