How is this different from Google Optimize?

Google Optimize was sunset in 2023. Experiment Flow is a modern replacement with better multi-armed bandit support, faster setup, and more affordable pricing.

Do I need to install anything?

Just add one script tag to your site. No npm packages, no build steps, no dependencies.

How does statistical significance work?

We use two-proportion z-tests with 95% confidence intervals. Results only show as significant when there is less than 5% chance the difference is due to randomness.

Can I use this server-side?

Yes. The REST API works with any language. There are official SDKs for Node.js, Python, Go, and Ruby.

Enterprise Pricing

Optimizely Alternative

Enterprise features without the enterprise price tag.

Experiment Flow vs Optimizely

Feature	Experiment Flow	Optimizely
Starting Price	$0/mo	$50,000/year
Sales Call Required	✗ No	✓ Yes
A/B Testing	✓ Yes	✓ Yes
Multi-Armed Bandits	✓ Yes	✓ Yes
Feature Flags	✓ Yes	✓ Yes
SDK Size	<2KB	~80KB
Setup Time	5 minutes	Days/Weeks
Auto-promote Winner	✓ Yes	✗ No
Self-serve Signup	✓ Yes	✗ No

Why Switch to Experiment Flow

Save $50,000+/year

Optimizely starts at $50K/year with mandatory sales calls. Experiment Flow is $29/seat/month with self-serve signup.

Same-Day Setup

No implementation consultants or multi-week onboarding. Add one script tag and start testing immediately.

Simpler Interface

Optimizely's bloated UI has hundreds of features you'll never use. We focus on what matters: running tests.

Faster SDK

Optimizely's SDK adds 80KB+ to your pages. Ours is under 2KB. Your Core Web Vitals will thank you.

Ready to Switch from Optimizely?

Get started in 5 minutes.

Get Started

Plans from $29/month. Unlimited experiments included.