VWO FullStack
Server-side feature flagging, A/B testing, and experimentation platform
Founded
2009
Starting Price
\u00240
Category
Developer Tools
Last updated March 16, 2026
About VWO FullStack
VWO FullStack (now VWO Feature Management & Experimentation) is a server-side experimentation platform from Wingify that lets engineering and product teams deploy features independently of releases, run A/B tests on any platform, and deliver personalized experiences — all without deploying new code.
Pros & Cons
Pros
- Test anything server-side — not limited to browser or frontend experiments
- Broad SDK coverage across 10+ programming languages and platforms
- Part of the broader VWO ecosystem with Testing, Insights, and Personalization modules
- Fast and responsive customer support praised consistently in reviews
- Intuitive interface for creating and managing experiments
Key Features
Feature Flags
Decouple deployment from release by turning features on or off at runtime without code changes
Progressive Rollouts
Release features to 1%, 10%, or 100% of users incrementally to manage risk
Server-Side A/B Testing
Test algorithms, search ranking, pricing logic, and checkout flows on the backend
Instant Rollback
Pause or revert feature releases immediately if metrics degrade with guarded releases
Advanced Targeting Rules
Target users by ID, device, OS, geography, feature flag status, or custom attributes
Personalization Rules
Deliver different feature variations to specific user segments for tailored experiences
Multi-Platform SDKs
Support for Node.js, PHP, Python, Go, Ruby, Java, iOS, Android, and more
Pricing
Free
\u00240
- Limited MTUs
- Basic feature flags
- Single environment
Growth
\u002473/month
Best For
E-commerce Experimentation
A/B test search algorithms, recommendation engines, and checkout flows to optimize conversion rates
SaaS Feature Rollouts
Gradually release new features to subscription users with percentage-based rollouts and instant rollback
Mobile App Feature Flags
Control feature availability on iOS and Android without waiting for app store review cycles
Backend Infrastructure Testing
Test database queries, API logic, and microservice changes safely with server-side experiments
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