Unlimited on every plan

Unlimited A/B testing.

No visitor caps. No event limits. No overage fees. Run tests on 100 visitors or 10 million — same price.

Visitors

Included on every plan. Even free.

Why we don't charge per visitor

Most A/B testing tools charge based on traffic. The more successful your site becomes, the more you pay. That's backwards.

We think you should be rewarded for growth, not penalized. So we charge for what you run, not who visits.

More visitors means faster results and better data. Why would we limit that?

How we compare

Usage-based pricing vs. flat pricing

Feature
Most tools
runab
Visitors per month
Capped or metered
Unlimited
Events tracked
Capped or metered
Unlimited
Price scales with traffic
Yes
No
Overage fees
Common
Never
Enterprise pricing for scale
Required
Not needed

What unlimited means for you

Scale without worrying

Your traffic spikes? Great. Your bill stays the same.

Predictable costs

Know exactly what you pay. No surprises at the end of the month.

Test on real traffic

Don't limit your sample size. More visitors = faster, more reliable results.

Perfect for

High-traffic sites

Traffic spikes won't spike your bill.

Growing startups

Scale your testing as you scale your product.

Seasonal businesses

Black Friday traffic? No problem.

Budget-conscious teams

Predictable costs, no surprises.

Simple pricing. Unlimited traffic.

Start free with unlimited visitors. Upgrade when you need more concurrent tests.

$0to start

Free plan includes 1 running test with unlimited visitors.

Ready to test without limits?

Start testing in under 2 minutes. No credit card required.