Back
Statsig vs Unleash
Trust Score comparison · March 2026
Signal Comparison
85k/wkWeekly npm downloads110k/wk
130GitHub commits (90d)250
1.1kGitHub stars11.5k
400Stack Overflow questions1.5k
GrowingCommunity healthActive
StatsigUnleash
Key Differences
| Factor | Statsig | Unleash |
|---|---|---|
| License | Proprietary | Apache-2.0 (core) / Proprietary (Enterprise) |
| Language | TypeScript / Python | TypeScript |
| Hosted | Self-hosted | Self-hosted |
| Free tier | — | — |
| Open Source | — | ✓ Yes |
| TypeScript | — | — |
Pick Statsig if…
- Running A/B experiments and wanting automated statistical significance
- Combining feature flags with product analytics in one tool
- Teams wanting a more affordable LaunchDarkly alternative
Pick Unleash if…
- Need full control and self-hosting of feature flag infrastructure
- GDPR compliance requires data to stay on-premise
- Budget-conscious teams who want enterprise feature flag capabilities for free
Side-by-side Quick Start
Statsig
import Statsig from 'statsig-js';
await Statsig.initialize(process.env.STATSIG_CLIENT_KEY!, {
userID: 'user_123',
email: 'user@example.com',
});
// Check a feature flag
const showNewUI = Statsig.checkGate('new_dashboard_ui');
// Get an experiment variant
const experiment = Statsig.getExperiment('checkout_flow');
const buttonColor = experiment.get('button_color', 'blue');
console.log('New UI:', showNewUI, 'Button:', buttonColor);Unleash
import { initialize } from 'unleash-client';
const unleash = initialize({
url: process.env.UNLEASH_URL!,
customHeaders: { Authorization: process.env.UNLEASH_API_TOKEN! },
appName: 'my-app',
});
// Wait for flags to sync
unleash.on('synchronized', () => {
const isEnabled = unleash.isEnabled('new-dashboard');
console.log('New dashboard:', isEnabled);
});Community Verdict
Based on upvoted notes🏆
Unleash wins this comparison
Trust Score 53 vs 10 · 43-point difference
Unleash leads on Trust Score with stronger signal data across downloads and community health. That said, the other tool is worth considering if your use case matches its specific strengths above.