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

AB Tasty Alternative

Powerful testing without the enterprise complexity.

Experiment Flow vs AB Tasty

Feature	Experiment Flow	AB Tasty
Pricing	$0/mo to start	Custom (sales call)
A/B Testing	✓ Yes	✓ Yes
Multi-Armed Bandits	✓ Yes	✓ Yes
SDK Size	~5KB gzip	Heavy
Self-serve Signup	✓ Yes	✗ No
Setup Time	5 minutes	Days/Weeks
REST API	✓ Yes	✓ Yes
Auto-promote Winner	✓ Yes	✗ No

Why Switch to Experiment Flow

Transparent Pricing

AB Tasty requires sales calls and custom quotes. We show our prices upfront: $29/seat/month.

Faster Implementation

No professional services required. Set up in 5 minutes with a single script tag.

Lightweight SDK

AB Tasty's tag manager approach adds significant page weight. Our SDK is about 5KB gzipped.

Developer-Friendly

Full REST API and code-first approach. No reliance on visual editors that break with site changes.

Ready to Switch from AB Tasty?

Get started in 5 minutes.

Get Started

Plans from $29/month. Unlimited experiments included.