vioscaleAI
Comparison

GrowthBook vs Optimizely

On the evidence we track, GrowthBook leads this comparison with a composite score of 73/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

GrowthBook full profile →Optimizely full profile →
Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★GrowthBook73
Optimizely41
Score
vioscaleAI score
GrowthBook73 / 100medium · 74%
Optimizely41 / 100low · 39%
Pricing
Free tier
GrowthBook✓
Optimizely–
Model
GrowthBookfreemium
Optimizelycommercial
Price level
GrowthBooklow
Optimizelyunknown
Starting price
GrowthBook$40
Optimizely–
Transparent
GrowthBook✗
Optimizely✗
Integrations
Count
GrowthBook16
Optimizely5
Security
Certifications
GrowthBookHIPAA
Optimizely–
Disclosure policy
GrowthBook✓
Optimizely–
Gdpr
GrowthBook✓
Optimizely✓
Hipaa
GrowthBook✓
Optimizely–
Iso27001
GrowthBook✓
Optimizely–
Soc2
GrowthBook✓
Optimizely–
Trust center
Vulnerabilities
Reliability
Sla pct
GrowthBook99.99
Optimizely–
Status page
GrowthBook✓
Optimizely✓
Adoption
Dependent repos
GrowthBook701
Optimizely–
Github stars
GrowthBook8,497
Optimizely–
Package downloads weekly
GrowthBook520,058
Optimizely–
Activity
Commits last 30d
GrowthBook100
Optimizely–
Release
Cadence days
GrowthBook54
Optimizely–
History
GrowthBook20 items
Optimizely–
License
Spdx
GrowthBookMIT
Optimizely–
Language
Primary
GrowthBookTypeScript
Optimizely–
Market
Availability
GrowthBookAvailable worldwide
Optimizely–
Content
Faq
GrowthBook7 items
Optimizely5 items

Capabilities

Feature-by-feature on the axes that matter for feature flag software. “-” means undocumented, not absent.

Deployment
Hosting
GrowthBookCloud + self-hosted
OptimizelyCloud only
Rollout
Percentage rollout
GrowthBook✓
Optimizely✓
Attribute / segment targeting
GrowthBook✓
Optimizely✓
Evaluation
Local evaluation (no call home)
GrowthBook✓
Optimizely-
Edge / CDN evaluation
GrowthBook✓
Optimizely-
Experimentation
Built-in A/B experimentation
GrowthBook✓
Optimizely✓
Experiment stats engine
GrowthBookBayesian
Optimizely-
Standards
OpenFeature-compliant provider
GrowthBook✓
Optimizely-
Governance
Audit logs + change approvals
GrowthBook✓
Optimizely-
Stale-flag / code reference detection
GrowthBook✓
Optimizely-
Coverage
SDK breadth
GrowthBookBroad
OptimizelyBroad
Licensing
Self-hostable OSS core
GrowthBook✓
Optimizely-

What each one is

The product in its own terms, so the numbers below have context.

GrowthBook

Leader

A platform combining feature flags, A/B testing, and product analytics that runs natively on your data warehouse (Snowflake, BigQuery, etc.), enabling teams to run experiments, roll out features safely, and analyze results without moving data to external tools.

Independently observed

Optimizely

A comprehensive suite integrating content management, experimentation, commerce, and personalization capabilities, powered by AI models to help marketing teams create and test digital experiences.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

GrowthBook

Leader
HybridFree tier

Free cloud plan for up to 3 users. Pro and Enterprise with custom pricing. Overage charges for CDN and managed warehouse usage.

  • StarterFree
    • Unlimited feature flags
    • Unlimited experiments
    • Base experimentation
    • Experiment history & audit log
    • Stale flag management
    • +5 more
  • ProAdvanced experimentation features for scaling teams
    • Up to 30 users
    • Sequential testing
    • CUPED variance reduction
    • Sticky bucketing
    • URL split tests
    • +3 more
  • EnterpriseContact sales
    • Unlimited users and events
    • SAML-based single sign-on
    • SCIM user provisioning
    • Approval workflows
    • Exportable audit logs
    • +5 more
  • Self-HostedFree
    • Unlimited users
    • Open source (MIT license)
    • Custom JavaScript validation
    • Microservices architecture support
as of verify ↗

Optimizely

Quote-based

Custom plans - contact sales for pricing

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
GrowthBook✓
Optimizely✓
iOS
GrowthBook✓
Optimizely✗
Android
GrowthBook✓
Optimizely✗
CLI
GrowthBook✓
Optimizely✗
Deployment
Cloud / SaaS
GrowthBook✓
Optimizely✓
Self-hosted
GrowthBook✓
Optimizely✗

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

GrowthBook

Leader
25 total
  • Rollbar
  • Figma
  • Snowflake
  • BigQuery
  • Databricks
  • Redshift
  • Vercel
  • ClickHouse
  • Postgres
  • MySQL
  • Athena
  • Presto
  • Segment
  • Mixpanel
  • Amplitude
  • Google Analytics
  • OpenFeature
  • Slack
  • Claude Code
  • Cursor
  • VS Code
  • Okta
  • Azure AD
  • Notion
  • +1 more
Independently observed

Optimizely

14 total
  • GlobalLink
  • Microsoft Dynamics
  • Commerce Connect
  • Adaptive Images
  • AEO Assist
  • Amazon S3
  • SearchStax
  • Opal
  • Epinova AI Assistant
  • WordPress
  • iCore Flexible Cloud
  • Azure DevOps
  • Amazon Web Services
  • Imageshop
Independently observed
Still deciding?

GrowthBook or Optimizely: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.