Sales and marketing software · Researched comparison
Best A/B Testing Software for Product and Marketing Teams in 2026
The best pick for most teams that want a public experiment price is GrowthBook Pro at $40 per seat per month, with a free Starter plan still listed (GrowthBook pricing, checked 14 Nov 2026). Statsig Pro at $150 per month is the pick when you want a platform fee plus a published event overage (Statsig pricing, checked 14 Nov 2026). PostHog is the pick when you can stay inside its published free allowances.
By The Computer Manual Editorial Team · Published 14 Nov 2026 · Last verified 14 Nov 2026
We may earn from affiliate links. A commercial relationship does not change the ranking on the page.
Key takeaways
GrowthBook lists Starter as free and Pro at $40 per seat per month (GrowthBook pricing, checked 14 Nov 2026).
Statsig lists a free Developer plan and Pro at $150 per month, with 5 million events included, then $0.05 per 1,000 events (Statsig pricing, checked 14 Nov 2026).
PostHog's pricing page listed free allowances including 1 million analytics events and 5,000 session recordings, and a calculator example that came to $0 at those levels (PostHog pricing, checked 14 Nov 2026).
We could not read a public starting price for VWO, Convert, Optimizely or AB Tasty on 14 Nov 2026, so they are not priced in the table.
GrowthBook also listed usage add-ons such as extra managed warehouse events at $30 per million after the included 2 million on Pro.
Tool
Best for
Standout feature
Starting price (checked 14 Nov 2026)
Free plan or trial
1 GrowthBook
Teams that want a free start and a public per-seat Pro rate
Starter free, Pro $40 per seat
Pro $40 per seat per month, checked 14 Nov 2026
Starter is free
2 Statsig
Teams that prefer a platform fee plus event overage
Pro at $150 per month
$150 per month, then $0.05 per 1,000 events, checked 14 Nov 2026
Free Developer plan listed
3 PostHog
Teams that can stay inside published free allowances
Large free product allowances
Free allowances listed; paid usage is calculated on the page, checked 14 Nov 2026
Free allowances, no card required for the free path we read
4 VWO
Teams that already shortlisted a classic web testing suite
Official pricing page
Public starting price could not be read, checked 14 Nov 2026
See official page
5 Optimizely
Larger teams comparing an enterprise experiment platform
Official pricing page
Public starting price could not be read, checked 14 Nov 2026
See official page
How we picked
We considered 9 experiment and feature-flag platforms and shortlisted 5. We only quote a dollar figure when we could read it on a public page on 14 Nov 2026. Several classic testing vendors blocked or returned pages without a usable rate. Weights follow how we score tools. This guide sits in sales and marketing software.
01
GrowthBook
Best for: Teams that want a free start and a public per-seat Pro rate
GrowthBook lists Starter as free and Pro at $40 per seat per month, for up to 30 users (GrowthBook pricing, checked 14 Nov 2026).
Pro includes 2 million managed warehouse events per month, then $30 per million, and CDN overage at $10 per additional million requests and $1 per additional GB.
Pros
You can start on a free plan before you buy seats.
The $40 seat rate is easy to model.
Flag and experiment features are listed on the same public page.
Cons
Thirty-user and project caps on Pro may be tight for a large org (GrowthBook pricing, checked 14 Nov 2026).
Warehouse and CDN overages are extra lines.
Enterprise is quote-only.
Price: Pro is $40 per seat per month (GrowthBook pricing, checked 14 Nov 2026).
Skip it if you already pay for a suite that includes experiments and will not run a second tool.
Verdict. GrowthBook is the default when you want a dated seat price and a free way to start.
02
Statsig
Best for: Teams that prefer a platform fee plus event overage
Statsig lists a free Developer plan and Pro at $150 per month, with 5 million events included, then $0.05 per 1,000 events (Statsig pricing, checked 14 Nov 2026).
The same Pro column mentioned unlimited flag and config checks and 100,000 session replays.
Pros
The $150 baseline is public.
Event overage is a published unit price, not a hidden quote.
A free Developer plan is listed for early work.
Cons
Busy event volume can exceed $150 quickly at $0.05 per 1,000 events (Statsig pricing, checked 14 Nov 2026).
You need a rough event forecast before you call it cheaper than a seat tool.
Enterprise is custom.
Price: Pro is $150 per month with 5 million events included, then $0.05 per 1,000 events (Statsig pricing, checked 14 Nov 2026).
Skip it if you only needed a lightweight test on one landing page and have almost no event volume to justify a platform fee.
Verdict. Statsig fits teams that will run flags and experiments together and can forecast events.
03
PostHog
Best for: Teams that can stay inside published free allowances
PostHog listed free allowances including 1 million analytics events, 5,000 session recordings, 1 million feature-flag units and 10 GB of logs (PostHog pricing, checked 14 Nov 2026).
A calculator example on that page came to $0 across seven products at those levels. We did not invent paid overage rates beyond what we could read. An onboarding call was listed at $80.
Pros
The free allowances are large enough for many early tests.
Feature flags and experiments sit with analytics in one product family.
The calculator makes it possible to model a later bill on the official page.
Cons
Paid overage rates were not all readable as a single starter price in the text we fetched (PostHog pricing, checked 14 Nov 2026).
A growing product can leave the free band without much warning.
You may still pay for optional onboarding at $80.
Price: Free allowances include 1 million analytics events and 5,000 recordings. Paid usage should be read on PostHog pricing, checked 14 Nov 2026.
Skip it if you need a single fixed monthly quote and do not want a usage calculator.
Verdict. PostHog is the pick when the free allowances cover your first tests and you are willing to model later usage on the official calculator.
04
VWO
Best for: Teams that already shortlisted a classic web testing suite
We opened VWO pricing on 14 Nov 2026. The extracted text did not include a clear self-serve starting price, so we do not invent one.
Confirm snapshot or visitor bands on that page before you budget a test programme.
Pros
VWO is still a common shortlist name for website experiments.
The vendor maintains a public pricing URL.
Leaving it out would hide a tool many buyers already compare.
Cons
Without a dated public figure, it cannot be the priced top pick.
Testing volume bands may appear only after you configure a quote.
Do not paste a remembered price into a memo.
Price: No starting price could be read from VWO pricing on 14 Nov 2026.
Skip it if you will only buy a tool with a public figure we could date.
Verdict. Keep VWO on the research list, then add the official figure once you can see it.
05
Optimizely
Best for: Larger teams comparing an enterprise experiment platform
We opened Optimizely pricing on 14 Nov 2026. The extracted text did not include a clear self-serve starting price.
Ask the vendor for a written quote and keep that quote with this guide's date.
Pros
The platform is built for broader digital experience work, not only a page test.
A public pricing URL exists.
It remains a reference point for large programmes.
Cons
It cannot win a priced comparison until a figure is public or written.
You may be buying a wider suite than a simple A/B tool.
Sales-led pricing can stretch a small-team timeline.
Price: No starting price could be read from Optimizely pricing on 14 Nov 2026.
Skip it if you needed a self-serve tool this week.
Verdict. Treat Optimizely as an enterprise path to quote, not as a priced starter.
A three-person experiment team, priced two ways
Three GrowthBook Pro seats are 3 times $40, which is $120 per month (GrowthBook pricing, checked 14 Nov 2026). Statsig Pro is $150 per month before extra events (Statsig pricing, checked 14 Nov 2026).
If those three people can stay inside PostHog's free allowances, the official calculator example we saw was $0 (PostHog pricing, checked 14 Nov 2026). The PostHog path only stays cheapest while you remain inside those allowances.
What is the cheapest way to start A/B testing?
GrowthBook Starter and Statsig Developer are listed as free, and PostHog publishes a large free allowance (vendor pricing pages, checked 14 Nov 2026). Start there, then compare GrowthBook Pro at $40 per seat or Statsig Pro at $150 per month.
Should we use a specialist testing tool or a product analytics suite?
Use a specialist when experiments are the main job and you want a seat or platform fee you can date. Use a suite like PostHog when flags, analytics and tests should share one dataset and you can live with usage-based billing later.
Why are VWO and Optimizely unpriced?
Because we could not read a clear public starting price on 14 Nov 2026. We would rather say so than invent a number from memory.
How should we budget Statsig events?
Start with the $150 Pro baseline and 5 million included events, then add $0.05 per 1,000 events above that (Statsig pricing, checked 14 Nov 2026). Get an event forecast before you call it cheaper than seats.
What to check before you buy
Write down whether you are testing web pages, product flags or both.
Estimate monthly events or seats, not only the number of tests.
Prefer a public rate or a written quote, not a remembered figure.
Check how results are exported if you leave.
Read overage rules for events, CDN or warehouse usage.
Confirm who can create and ship a test, not only who can view results.
Re-check pricing when traffic doubles.
FAQ
What is the best A/B testing software for most teams in 2026?
GrowthBook Pro is the best pick for most teams that want a public price, at $40 per seat per month (GrowthBook pricing, checked 14 Nov 2026). Choose PostHog if you can stay inside its free allowances, or Statsig if a $150 platform fee plus events fits better.
How much does Statsig cost?
Pro is $150 per month with 5 million events included, then $0.05 per 1,000 events (Statsig pricing, checked 14 Nov 2026). A free Developer plan is also listed.
Is PostHog free for A/B testing?
PostHog lists free allowances, including 1 million analytics events and 5,000 recordings, and a calculator example at those levels came to $0 (PostHog pricing, checked 14 Nov 2026). Paid usage should be read on that page once you leave the free band.
Can Convert or AB Tasty be added later?
Yes, if a later check finds a public price and the product wins on our weights. We could not read a starting price for them on 14 Nov 2026.
Is this order taken from another site's commercial list?
No. The order is editorial and based on the public prices we could date, plus the how we score weights.
