VWO

A/B testing, behavior analytics, and personalization for conversion optimization

Marketing Web Analytics Testing & QA vwo.com

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Founded

2010

Starting Price

Custom

About VWO

VWO (Visual Website Optimizer) is a conversion rate optimization platform from Wingify for marketing, product, and growth teams. It combines client-side A/B, split URL, and multivariate testing built with a visual editor, behavior analytics (heatmaps, session recordings, form analytics, on-page surveys), and audience personalization, all reading from one shared data platform. Following its 2026 merger with AB Tasty, VWO's products are being rebranded under the Wingify name (for example, Wingify Experimentation and Wingify Behavior Analytics) and come with the Wingz AI layer for hypothesis generation and test setup. Server-side feature flagging is sold separately as VWO FullStack (Wingify Feature Management).

Pros & Cons

Pros

Visual editor lets marketers launch A/B tests without developer help, which reviewers cite as its main strength
Testing, heatmaps, session recordings, surveys, and personalization share one platform and data layer instead of separate tools
Unlimited experiments, variations, and metrics on every plan rather than per-test limits
Responsive customer support is a recurring theme in G2 reviews (about 4.4/5 across 900+ reviews for VWO Testing)
Data centers in the US, EU, and India help with data residency requirements
Wingz AI Core is included with paid plans at no extra cost

Cons

No public prices: every plan is a custom quote based on monthly active users, which makes budgeting hard for small teams
Reporting and data export are a common complaint; reviewers want deeper analytics and easier sharing
Multivariate and cross-domain testing are locked to Pro and above
Ongoing rebrand to Wingify after the AB Tasty merger means product names, URLs, and the app domain are changing
Server-side and feature-flag experimentation require the separate FullStack product

Key Features

Visual and Code Editor

Build test variations with a WYSIWYG editor and a widget library, or switch to the code editor for custom HTML, CSS, and JavaScript changes

A/B, Split URL, and Multivariate Tests

Run A/B/n, split URL, multi-page, and multivariate experiments on web pages, with unlimited experiments, variations, and metrics on every plan

Multi-Armed Bandit and Rollout Campaigns

Shift traffic automatically toward winning variations or roll a winning change out to all visitors without a code release

Heatmaps and Scrollmaps

See where visitors click, tap, and how far they scroll so key content sits where attention actually lands

Session Recordings

Replay real visitor sessions to spot rage clicks, navigation loops, and friction that aggregate metrics hide

Form Analytics and Surveys

Find the exact form field where visitors drop off and collect on-page feedback to explain the numbers

Audience Targeting and Personalization

Target experiments and personalized experiences by behavior, traffic source, device, location, or custom segments, with per-segment results

Statistical Guardrails

Guardrail metrics and sample ratio mismatch detection (Pro and above) protect test validity and catch broken experiments early

Wingz AI

Included AI layer that suggests hypotheses, helps build variations and configure tests, and summarizes results; Wingz Advanced adds AI workflows, autopilot, synthetic A/B tests, and an MCP server