Looking for an Optimizely alternative?

Optimizely does not publish pricing; the ranges below are third-party estimates, marked as such. Checked on 7 July 2026 — see optimizely.com for current details.

Optimizely is a serious experimentation platform. Teams rarely leave it because it falls short on capability — they leave because the bill is large and quote-only, or because they'd rather define experiments in code than route every decision through a sales process. If either of those is you, here's an honest look at whether ABTestly fits.

Why people go looking

Two reasons come up most:

The price, and the fact that you can't see it. Optimizely doesn't publish pricing — its plans page routes to contact sales. Third-party estimates (not Optimizely's official numbers) commonly put Web Experimentation in the tens of thousands of dollars a year, higher for mid-market accounts and past $200k at enterprise scale. Whatever the real figure for your account, you find it out on a call, not on a page.

The workflow. Optimizely is built to serve large programs with visual editing, full-stack SDKs, and program-management tooling. That's a strength for a big team. If your experiments live in code review and version control, a lot of that surface area is weight you carry rather than use.

What ABTestly does differently

ABTestly is A/B testing built for the edge: code-first, served from Cloudflare's network in 300+ cities, with the statistics shown in full and the price printed on the page.

• Published pricing. Pro is $179/mo ($143/mo billed annually) for 100,000 monthly tracked users, with unlimited experiments on every paid plan from Pro up. No "contact sales" to see a number.
• A snippet built to stay out of your way. A runtime around 10KB gzipped, loader under 1.5KB, config served from the edge, with variants applied on first paint. Anti-flicker is on by default — there's no per-site toggle to forget.
• Experiments authored in ES6 code, not a point-and-click editor. They diff, they review, and they can live in your repo. Results feed GA4 natively through an experience_impression dataLayer event.
• Statistics you can audit. Every result shows its sample size and a confidence interval, nothing is called a winner before it reaches significance, and a chi-square sample ratio mismatch check raises a warning banner when a traffic split looks broken. Consent gating is fail-closed. The full method is public in our docs.
• No overage charges, ever. Exceed your MTU limit and already-bucketed visitors keep their variants while new visitors stop being bucketed. You get an email, not an invoice.
• A permanent free plan — 1 experiment, 3,000 MTU — so you can test the product on a real page before paying anything. Nonprofit and open-source projects get 50% off paid plans.

The price gap, in one paragraph

Optimizely is quote-only, so an exact side-by-side isn't possible without their proposal. What we can say is what each side publishes: third-party estimates put Optimizely Web Experimentation roughly in the tens of thousands of dollars a year (commonly cited around $25k–$40k, more for mid-market and $200k+ at enterprise scale), and those are estimates from others, not Optimizely's official prices. ABTestly's numbers are on one page: Free at $0 (3,000 MTU, 1 experiment), Starter at $79/mo (25K MTU), Pro at $179/mo (100K MTU, unlimited experiments), Business at $399/mo (500K MTU), and Enterprise from $899/mo. The full breakdown and a sample-size calculator are on the pricing page.

Optimizely pricing estimates are from third parties and are not Optimizely's official figures. ABTestly prices are billed via Paddle as merchant of record; annual billing is 20% off and applicable tax is handled at checkout.

It might not be for you if…

Honesty matters more to us than the sale, so:

• You need enterprise experimentation at scale. Full-stack and server-side experimentation, feature flags, and formal program management are Optimizely's home ground. ABTestly does client-side A/B testing; single-page-app support is rolling out.
• You need sequential testing today. Optimizely's Stats Engine offers it. ABTestly runs fixed-horizon tests; sequential testing is on the roadmap, not in the product.
• You rely on a large integration ecosystem. Optimizely connects to a wide catalogue of tools. ABTestly integrates natively with GA4, and that's currently it.
• You need a visual editor for non-technical marketers. ABTestly has no WYSIWYG editing — variants are written in code.
• You need a public API, webhooks, or raw event export now. Those are on the ABTestly roadmap, not shipped.

If none of those are blockers, a published price and a public methodology are easy to verify — and it costs nothing on the free plan.

Trying it is smaller than a sales cycle

You don't need a proposal to evaluate ABTestly. Put one experiment live on the free plan, read the confidence interval and the SRM check on a real result, and compare the workflow against what an Optimizely rollout would ask of your team. If you're weighing more than two tools, the Optimizely vs ABTestly comparison goes feature by feature, and we're happy to talk it through — email [email protected].

Quick answers

Optimizely does not publish pricing; figures cited here are third-party estimates, checked on 7 July 2026, and are not Optimizely's official prices. ABTestly is not affiliated with Optimizely, Inc.

Talk to us about switching: book 20 minutes or [email protected]. — The ABTestly team