Independent · sourced · Updated June 2026
Best A/B Testing (2026)
The cheapest a/b testing is GrowthBook at $0/mo. 3 offer a free tier (GrowthBook, LaunchDarkly, Statsig). This page compares 8 options on entry price, free tier, HIPAA/SOC 2 and best-for — every figure linked to its source, updated June 2026.
8 options compared on price, free tier, compliance and fit — ranked cheapest-first. Every figure links to the vendor's own page and the date we captured it; quote-only tiers show “—”, never a guess.
Key takeaways
- Cheapest: GrowthBook at $0/mo (Cloud Starter).
- Typical paid price: from $40/mo, median $150/mo, up to $299/mo — across 3 with published pricing.
- Free tier: GrowthBook, LaunchDarkly, Statsig.
- HIPAA-ready: GrowthBook, LaunchDarkly, Statsig, Convert Experiences, Kameleoon, Optimizely.
- Tracked: 8 vendors, data current through 2026-06-15.
Comparison
| # | A/B Testing | Entry price | Free | HIPAA | SOC 2 | Best for | Source |
|---|---|---|---|---|---|---|---|
| 1 | GrowthBook | $0/mo Cloud Starter | Yes | Yes | Yes | Engineering and data teams wanting warehouse-native experimentation without vendor data lock-in | growthbook.io |
| 2 | LaunchDarkly | $0/mo Developer | Yes | Yes | Yes | AI engineering teams needing runtime control of agent behavior without redeploys | launchdarkly.com |
| 3 | Statsig | $0/mo Developer | Yes | Yes | Yes | Product and engineering teams at scale (OpenAI, Brex, Microsoft, Atlassian, Notion) | statsig.com |
| 4 | Convert Experiences | $299/mo Growth | No | Yes | Yes | E-commerce brands needing revenue tracking and cart optimization | convert.com |
| 5 | AB Tasty | — | No | — | — | Enterprise e-commerce, travel, beauty, fashion, and media brands | quote-only |
| 6 | Kameleoon | — | No | Yes | Yes | Marketing teams wanting AI-assisted experiment creation without developer dependency | quote-only |
| 7 | Optimizely | — | No | Yes | Yes | Enterprise marketing and product teams needing a unified DXP | quote-only |
| 8 | VWO (Visual Website Optimizer) | — | No | — | Yes | CRO teams wanting an all-in-one testing and analytics platform | quote-only |
Prices are the lowest published self-serve monthly rate as captured on the linked source. Annual-billing and usage details are on each vendor's record in our open dataset.
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Frequently asked questions
What is the cheapest a/b testing?
GrowthBook has the lowest published entry price at $0/mo (Cloud Starter), as of 2026-06-15.
How much does a/b testing cost per month?
Across the 3 a/b testing with published paid pricing, the median starting price is $150/mo, ranging from $40/mo to $299/mo, as of 2026-06-15. 3 also offer a free tier. 4 are quote-only.
Which a/b testing have a free plan?
GrowthBook, LaunchDarkly, Statsig offer a free tier.
Which a/b testing support HIPAA?
GrowthBook, LaunchDarkly, Statsig, Convert Experiences, Kameleoon, Optimizely state HIPAA support (a BAA). Always confirm current scope with the vendor.
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How we compiled this
Pricing fetched directly from each vendor's official pricing page via WebFetch on 2026-06-14. Vendors without any self-serve USD pricing published (Optimizely, VWO, AB Tasty, Kameleoon) are included with quote-only (null) plans to document their pricing opacity. LaunchDarkly Foundation is usage-metered with no flat tier, recorded with monthlyUsd: null and unit rates in notes. Convert prices confirmed on two visits. GrowthBook Pro is per-seat cloud. Statsig Pro is flat monthly with usage overages. Slashdot.org used as secondary corroboration where available. ABsmartly pricing is EUR-denominated with no USD self-serve tier; recorded as quote-only.
Last verified 2026-06-15. We re-check published prices and compliance on a recurring cadence and update this page when they change.
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