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Description
GrowthBook is an open-source, warehouse-native platform for feature flags, experimentation, and product analytics. Self-host or use GrowthBook Cloud.
Feature flags: Boolean, string, number, and JSON values with targeting rules, percentage rollouts, instant kill switches, and stale flag detection.
Experimentation: A/B and multivariate tests across server-side, client-side, mobile, and edge, with Bayesian and frequentist engines.
Warehouse-native: Connect Snowflake, BigQuery, Redshift, Databricks, ClickHouse, Postgres, and more. Metrics are transparent SQL, and end-user PII stays in your warehouse.
AI-ready: An MCP server and agent skills let you manage flags and experiments from your editor.
24+ SDKs: JavaScript, React, Node.js, Python, Ruby, Go, PHP, Java, Swift, Kotlin, and more, plus a REST API, webhooks, and dbt sync.
Pricing is per seat. Start free with unlimited events, experiments, and traffic. Paid plans add advanced statistics, safe rollouts, SSO, and approval workflows.
Description
Spar serves as an AI-driven platform for conversion rate optimization (CRO) and A/B testing, tailored for Shopify, various ecommerce sectors, and SaaS teams. It analyzes any storefront by leveraging data from your sales funnel, behavioral indicators, customer reviews, public sentiment, and brand context, subsequently transforming identified friction points into prioritized, test-ready A/B variations with clear citations of their supporting evidence. The platform independently conducts and evaluates its tests through sequential statistics, declaring a winner once a variation achieves a 95% probability of being the best option. Variants utilize scoped JavaScript, ensuring your theme and app code remain untouched throughout the process. Additionally, it seamlessly integrates with other experiment and task management tools, providing a comprehensive approach to optimization. Everything is subjected to your approval before implementation, ensuring complete control over the changes made.
API Access
Has API
Yes
API Access
Has API
No
Screenshots View All
No images available
Integrations
Shopify
Yes
ClickHouse
Yes
Compute@Edge
Yes
Datadog
Yes
Flutter
Yes
JSON
Yes
Model Context Protocol (MCP)
Yes
MySQL
Yes
PHP
Yes
Presto
Yes
Integrations
Shopify
Yes
ClickHouse
No
Compute@Edge
No
Datadog
No
Flutter
No
JSON
No
Model Context Protocol (MCP)
No
MySQL
No
PHP
No
Presto
No
Pricing Details
Free feature flags & testing
$40/month/user for small to mid-sized teams with advanced statistics and analytics.
Custom pricing for enterprise to run experimentation and release features at scale.
Custom pricing for enterprise to run experimentation and release features at scale.
Free Trial
No
Free Version
Yes
Pricing Details
$100/month
Free Trial
Yes
Free Version
No
Deployment
Web-Based
Yes
On-Premises
Yes
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
Yes
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
Yes
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
Yes
In Person
No
Vendor Details
Company Name
GrowthBook
Founded
2020
Country
United States
Website
www.growthbook.io
Vendor Details
Company Name
Spar
Founded
2025
Country
Canada
Website
spar.so
Product Features
AB Testing
Audience Targeting
Yes
Campaign Segmentation
No
Funnel Analysis
Yes
Heatmaps
No
Landing Pages / Web Forms
No
Multivariate Testing
Yes
Split Testing
Yes
Statistical Relevance Analysis
Yes
Surveys
No
Test Scheduling
Yes
Visual Editor
Yes
Feature Management
A/B Testing
Yes
Entitlement Management
Yes
Feature Alerts
Yes
Feature Flag / Toggle
Yes
Feature Rollout Management
Yes
KPI Monitoring
Yes
Kill Switch
Yes
Multivariate Testing
Yes
Product Experimentation
Yes
Whitelist Creation
Yes
Product Analytics
Attribution
Yes
Automatic Data Capture
Yes
Churn Reporting
No
Customer Feedback Collection
No
Customer Guidance
No
Customer Journey Analytics
Yes
Data Export
Yes
Data History Retention
Yes
Data Labeling
No
Product Engagement Scoring
No
Real-Time Data Analysis
No
Touchpoint Analytics
No
User Segmentation
Yes
Product Features
AB Testing
Audience Targeting
No
Campaign Segmentation
No
Funnel Analysis
No
Heatmaps
No
Landing Pages / Web Forms
No
Multivariate Testing
No
Split Testing
No
Statistical Relevance Analysis
No
Surveys
No
Test Scheduling
No
Visual Editor
No
Customer Journey Mapping Tools
Action Management
No
Attribution Modeling
No
Behavioral Analytics
No
Collaboration
No
Customer Profiles
No
Data Import / Export
No
Predictive Analytics
No
Surveys & Feedback
No
Templates
No