A/B Testing & ExperimentationMid-MarketFree (open source), cloud from $75/mo

GrowthBook

Open-source feature flagging and A/B testing platform with Bayesian statistics.

Overview

Open-source feature flagging and A/B testing platform with Bayesian statistics.

Best for:Data-savvy teams wanting control

Key Strengths

Open source & self-hostable
Bayesian statistics engine
Feature flags built in
Warehouse-native analytics

Fit Analysis

Best for Roles

Senior / Staff PM
8/10
IC Product Manager
7/10
Group PM / PM Lead
6/10
Head of Product / Director
6/10

Best for Workflow Needs

Experimentation & A/B Testing
10/10
Product Analytics
5/10
Delivery Tracking
3/10
User Research
2/10

Team Size Fit

1–5 people
5/10
6–20 people
8/10
21–50 people
9/10
50–200 people
8/10
200+ people
7/10

Budget Fit

Free only
8/10
Under $25/seat
7/10
$25–$75/seat
8/10
$75+/seat
8/10
No constraint
8/10

Comparisons

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