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About

GrowthBook is an open source feature-flagging and experimentation platform built to help teams release code confidently and measure the impact of product changes using their own data. It enables the creation and management of feature flags of various types (Boolean, number, string, JSON) with targeting rules, percentage roll-outs, safe ramp-ups, and experiment assignment. The platform is warehouse-native, allowing you to connect your data where it already lives (SQL data warehouses, Mixpanel, Google Analytics, and more) and run experiments and analyses without sending raw user-level PII to a third-party service. It supports modular usage; you can adopt just feature flagging, just experiment analysis, or both together. Key capabilities include: high-performance lightweight SDKs (enabling billions of feature lookups per day), a visual editor for no-code AB tests, and experiment reporting with advanced statistical methods.

About

Spar is an AI conversion rate optimization (CRO) and A/B testing platform for Shopify, broader ecommerce, and SaaS teams. It profiles any storefront, grounds recommendations in your funnel data, behavior signals, reviews, public opinion, and brand context, then turns specific friction points into prioritized, test-ready A/B variations, each citing the evidence it came from. Spar runs and measures its own tests using sequential statistics, flagging a winner once a variation reaches 95% probability of being best. Variants are scoped JavaScript, so your theme and app code stay untouched. It works alongside other experiment and task management platforms. Nothing ships without your approval.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Engineering teams needing a solution to launch new features, run AB tests, and measure impact using their own analytics infrastructure

Audience

Ecommerce brands, merchants, and agencies

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$20 per month
Free Version Supported
Free Trial Not Supported

Pricing

$100/month
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

GrowthBook
Founded: 2020
United States
www.growthbook.io

Company Information

Spar
Founded: 2025
Canada
spar.so

Alternatives

Alternatives

Statsig

Statsig

OpenAI
Elevate

Elevate

Elevate AB Testing
Split

Split

Harness

Categories

AB Testing Supported
Feature Management Supported
Product Analytics Supported

Categories

Integrations

Shopify Supported
AccessOwl Supported
Amazon Athena Supported
Amazon Redshift Supported
C# Supported
ClickHouse Supported
Databricks Supported
Go Supported
Google Analytics Supported
Java Supported
MariaDB Supported
Mixpanel Supported
MySQL Supported
Presto Supported
React Supported
RudderStack Supported
SQL Server Supported
Trino Supported
Webflow Supported
WordPress Supported

Integrations

Shopify Supported
AccessOwl Not Supported
Amazon Athena Not Supported
Amazon Redshift Not Supported
C# Not Supported
ClickHouse Not Supported
Databricks Not Supported
Go Not Supported
Google Analytics Not Supported
Java Not Supported
MariaDB Not Supported
Mixpanel Not Supported
MySQL Not Supported
Presto Not Supported
React Not Supported
RudderStack Not Supported
SQL Server Not Supported
Trino Not Supported
Webflow Not Supported
WordPress Not Supported
Claim GrowthBook and update features and information
Claim GrowthBook and update features and information
Claim Spar and update features and information
Claim Spar and update features and information