Every plan runs real A/B tests on day one. As your program grows, higher tiers add advanced targeting, extra statistics engines, and team controls. The number you pay scales with how much testing you actually do. No automatic overages, no talk to sales for a price.
Annual billing saves 20% on every plan and 15% on Signals.
Add Signals, the AI CRO audit layer, to any paid plan below. It is optional, free while in Beta, and priced separately by scans a month once Beta ends.
For evaluating the workflow and running a focused test.
Signals can be added once you are on a paid plan.
For small technical experimentation programs.
Free while in Beta. Choose your scan volume for after Beta.
For teams running a consistent testing program.
Free while in Beta. Choose your scan volume for after Beta.
For higher volume sites and larger teams.
Free while in Beta. Choose your scan volume for after Beta.
For organizations that need custom MTU limits and commercial terms. Includes dedicated support, security review, MSA, DPA, negotiated SLA options, and the rest of the procurement paperwork.
Signals is optional here too, free while in Beta. Learn more about Signals
Signals is optional and free for every paid plan while it is in Beta. The tier you pick above only sets its price for after Beta. Learn more about Signals
Real A/B testing, targeting, the editor, and honest frequentist stats are on every plan, including Free. Advanced targeting, the extra statistics engines, and team controls come as you move up. Here is exactly where each capability lives.
| Capability | Free | Starter | Pro | Business | Enterprise |
|---|---|---|---|---|---|
| Core, every plan | |||||
| A/B and split testingMultiple variants, traffic split, deterministic bucketing | |||||
| Page and URL targetingShow a test only on URLs that match your rules | |||||
| Behavioral and audience targetingTarget by visit count, referrer, device, or cookies | |||||
| Segment filtersSlice results by audience segment after the fact | |||||
| Frequentist statisticsSignificance on conversion rate, the default engine | |||||
| Monaco code editorAuthor variants as JavaScript and CSS in a full code editor | |||||
| Goals and system defaultsClicks, pageviews, events, revenue, two goals built in | |||||
| Preview and QAPreview any variant by shareable link or QR before launch | |||||
| Visitor opt outHonor ?abtestly_optout so visitors can self exclude | |||||
| Data collection healthAlerts when your snippet goes dark or collects nothing | |||||
| Goal setup intelligencePre launch warnings for fragile selectors and URLs | |||||
| Starter and up | |||||
| Experiment schedulingAuto start and stop on a schedule or after a set number of days | |||||
| Clone experimentDuplicate an experiment into a fresh draft | |||||
| CSV exportDownload results as CSV | |||||
| Change historySee who changed what on an experiment, and when | |||||
| Guardrail metricsWatch secondary metrics a winner should not harm | |||||
| Pro and up | |||||
| Geo targetingTarget or segment by country, region, or city | |||||
| Activation triggersFire on click, element view, or manual call, not just page load | |||||
| Sequential testingPeek any time without inflating false positives | |||||
| Bayesian statisticsProbability to be best and expected loss engine | |||||
| Revenue and ecommerce metricsRevenue per visitor goals with confidence intervals | |||||
| Outlier controlCap extreme order values so one whale does not skew revenue | |||||
| Time to decisionProjected days or weeks until the test reaches significance | |||||
| Global JSSite wide JavaScript that runs before every variant | |||||
| Dev and variation librariesAdd curated npm libraries to variation code | |||||
| Speed aware experimentsPer variant LCP and performance guardrail | |||||
| Business and up | |||||
| Mutual Exclusion GroupsGuarantee visitors never see two conflicting tests at once | |||||
| Segment matrixFull segment by variant results breakdown grid | |||||
| Raw event exportExport raw, event level data with nothing dropped | |||||
| Team and Access permissionsPer site, per capability roles, twenty granular keys | |||||
| Blocked IPsExclude office and bot IPs from data ingestion | |||||
| Business impact summaryRolled up revenue and impact across all winning tests | |||||
| Enterprise | |||||
| Unlimited everythingSites, experiments, MTU, seats, and storage, with custom terms | |||||
Everything on a lower plan is included on every plan above it. Limits apply going forward, never retroactively to a program you are already running.
At the same 100,000 tracked user tier, on annual billing, ABTestly Pro is about a third less than Convert. VWO does not publish a 100,000 tracked user price, and Optimizely quotes custom.
Prices at the 100,000 tracked user tier, annual billing, checked August 2026. ABTestly Pro annual is $199 and Convert Growth annual is $299. VWO does not publish a 100,000 tracked user price, so ask VWO for a quote; Optimizely is custom.
Go deeper: Convert vs ABTestly · VWO vs ABTestly · Optimizely vs ABTestly · how migration works
One monthly tracked user (MTU) is one unique visitor per calendar month who is assigned to an active experiment. Visitors who never enter an experiment do not count. Anonymous visitors are deduplicated by a first party identifier.
You get notified at 80% and 100% of your monthly limit. We do not stop firing experiments and we do not auto charge for overage. We email you to upgrade or talk.
Yes. As we roll tiers out, accounts keep the capabilities they already rely on. New limits apply going forward, not retroactively to break a program you are already running.
Yes. Upgrades are prorated to the day. Downgrades take effect at the next billing cycle so you keep paid access until then.
20% off every paid tier when billed annually. Use the Monthly / Annual toggle at the top of the page to see the numbers.
30 day money back guarantee on your first paid month, monthly or annual. After day 30, cancellation stops future charges but is not prorated. You keep paid access until the end of the current billing period. Full details in the refund policy.
Yes. 50% off any tier for verified nonprofits and OSS maintainers. Email hello@abtestly.com.
Not for Free, Starter, Pro, or Business. You self serve on those. Enterprise is custom pricing with custom MTU volumes and commercial terms, and that one you email enterprise@abtestly.com to arrange.
Every plan, including Free, runs proper frequentist significance with the sample ratio guard and the exact event ledger, so you never call a winner before the threshold. Guardrail metrics come with Starter. The sequential (peek safe) and Bayesian engines and revenue metrics come with Pro. When a capability is in your plan it is included, never billed as a separate add on.
Free plan, no card, no talk to sales. Drop the snippet, define one variant, watch the events land.