Optimizely vs AB Tasty
Ranjeeth Kumar
Last updated on
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The short answer
Optimizely and AB Tasty both run client-side A/B and multivariate testing plus server-side feature flagging, and both sit inside a broader platform story (experimentation plus content/commerce for Optimizely, experimentation plus personalization and a CDP-connected Audience Manager for AB Tasty). Neither publishes list pricing, so figures here are third-party estimates, not vendor-quoted numbers (verify live before you buy). The honest split is company scale and engineering depth versus reviewer-rated ease of use and support: Optimizely has the larger post-merger scale, a wider server-side SDK language list, and a combined content/commerce/experimentation suite (Optimizely One). AB Tasty scores higher on G2 (4.4/5 versus 4.2/5 on comparable review volume) and is repeatedly praised by reviewers for support responsiveness and a marketer-friendly UI that needs less engineering help to run day-to-day tests.
If you run a large, engineering-resourced organization, want feature flags across 10+ server-side SDK languages (including Go, Swift, and Flutter), or you are already on or moving toward the Optimizely content and commerce suite (Optimizely One), Optimizely’s deeper enterprise footprint is the stronger fit. Expect a quote-only conversation, with third-party estimates commonly around $36K/yr entry and up.
If you want non-technical teams to launch tests without heavy engineering support, value a higher-rated (4.4/5 G2) tool with reviewers consistently praising support, and want a large bank of named, outcome-quantified case studies (Kering, Puma, Ulta, GANNI), AB Tasty is the more accessible pick, with third-party estimates suggesting a lower mid-market entry point (roughly $1,000 to $3,000/mo).
At a glance
| Optimizely | AB Tasty | |
|---|---|---|
| Vendor | Optimizely (formerly Episerver); owned by Insight Venture Partners | AB Tasty |
| Category | Enterprise experimentation platform (part of a broader DXP) | Experimentation and personalization platform |
| Starting price | No public price; third-party estimates commonly ~$36K/yr entry (verify live) | No public price; third-party estimates ~$1K to $3K/mo mid-market (verify live) |
| Public rating | 4.2/5 G2 (~411 reviews, Web Experimentation) | 4.4/5 G2 (400+ reviews) |
| Best for | Large, engineering-resourced enterprises; existing Optimizely CMS/Commerce users | Mid-market to enterprise marketing teams wanting less engineering overhead |
Vendor profile
Optimizely
Optimizely was founded in 2010 by Dan Siroker and Pete Koomen. It was acquired by Episerver (a Stockholm-founded CMS company dating to 1994) in October 2020, and the combined company was rebranded “Optimizely” in January 2021; it is owned by Insight Venture Partners following a $1.16B Episerver acquisition in 2018. Its HQ is reported as New York, with major hubs in Stockholm and Nashua, NH (sources conflict on a single canonical HQ, so treat this as directional and verify live). Optimizely Web Experimentation runs client-side A/B and multivariate testing, with server-side feature flagging via Optimizely Feature Experimentation offering sub-millisecond local SDK evaluation across 10+ languages. It sits inside Optimizely One, a combined content/commerce/experimentation suite that is a genuine consolidation play for enterprises already using its CMS or commerce products.
- Founded
- 2010 (Episerver lineage dates to 1994; merged/rebranded 2021)
- HQ
- New York (reported); hubs in Stockholm and Nashua, NH (unverified single HQ, verify live)
- Ownership
- Insight Venture Partners (private equity)
- Pricing model
- Quote-only, by MTU/sessions, modular across Content/Commerce/Intelligence Cloud
- Public rating
- 4.2/5 G2 (~411 reviews, Web Experimentation); 4.2/5 across all Optimizely products (~918 reviews)
AB Tasty
AB Tasty was founded in 2009 (some sources reference a later commercial launch date; full founder names are not independently verified here). It’s headquartered in Paris, France, with roughly 299 to 344 employees across 12 offices in 8 countries as of April 2026 depending on source. AB Tasty runs client-side A/B/n and multivariate testing with a visual editor, server-side testing and feature flagging through its Flagship product, and a personalization Audience Manager with a drag-and-drop segment builder, CDP integrations, and AI-powered psychographic segmentation. It has a Contentsquare integration and offers a free 1-2 week proof-of-concept in place of a traditional free trial. Its case-study hub cites named, outcome-quantified results for clients including Kering, Puma, Ganni, Evri, Ulta, and On The Beach.
- Founded
- 2009 (commercial launch date variance across sources)
- HQ
- Paris, France
- Team
- ~299 to 344 employees, 12 offices in 8 countries (as of April 2026)
- Notable clients
- Kering, Puma, Ganni, Evri, Ulta, Clarins, On The Beach
- Public rating
- 4.4/5 G2 (400+ reviews on product page; 330 on seller page, discrepancy flagged)
Pricing: what you'll actually pay
Neither vendor publishes list pricing; both require a sales quote. The figures below are third-party estimates (Vendr, Conversion Wax, checkthat.ai), not vendor-published numbers, so verify current terms directly with each vendor before buying.
| Optimizely | AB Tasty | |
|---|---|---|
| Starting price | No public price; commonly ~$36K/yr entry (third-party estimate) | No public price; mid-market plans reportedly ~$1K to $3K/mo (third-party estimate) |
| Average contract value | Not independently confirmed in this research pass | ~$45,134/yr reported average (third-party estimate) |
| Full-capability / enterprise | Full Optimizely One (content + commerce + experimentation) can exceed $200K/yr | Not independently confirmed; likely scales with traffic/MAU tier |
| Free plan / trial | No free plan; sales quote required | No free trial; offers a free 1-2 week proof-of-concept instead |
| Pricing model | Usage-based on MTUs/sessions, modular across Content/Commerce/Intelligence Cloud | Custom, traffic/MAU-based quote model |
Capability comparison
Both tools cover client-side testing and server-side feature flagging. The gaps show up in engineering depth versus bundled personalization, platform breadth, and how approachable each tool is for non-technical teams.
| Service | Optimizely | AB Tasty |
|---|---|---|
| Client-side A/B, A/B/n, multivariate testing | ✓ | ✓ |
| Server-side feature flagging | ✓ (Feature Experimentation, sub-ms SDK evaluation) | ✓ (Flagship, boolean/number/string flags) |
| Server-side SDK language coverage | ✓ (10+ languages incl. Go, Swift, Flutter) | Partial (narrower published SDK list) |
| No-code visual editor for non-technical teams | Partial (more developer-oriented at the high end) | ✓ (marketer-friendly, repeatedly praised in reviews) |
| Personalization / audience segmentation | ✓ (via wider Optimizely One suite) | ✓ (Audience Manager, AI psychographic segmentation, CDP integrations) |
| Combined CMS/commerce + experimentation suite | ✓ (Optimizely One) | ✕ |
| Named, outcome-quantified case studies | Partial (specific named logos not independently confirmed) | ✓ (112 case studies, e.g. Ulta +9% revenue, GANNI +12% AOV) |
| Support quality (reviewer-rated) | Weaker per G2’s own comparative data versus category peers | ✓ (multiple G2 badges, consistently praised in reviews) |
| Ease of setup for non-technical users | Partial (learning curve requiring coding knowledge, per G2) | ✓ (easier onboarding for basics per reviews, though advanced/statistical features still have a curve) |
Decision matrix - who fits which side
| Criterion | Optimizely | AB Tasty |
|---|---|---|
| Large, engineering-resourced enterprise team | ✓ | ~ |
| Non-technical marketing team running tests solo | ~ | ✓ |
| Combined content/commerce/experimentation suite already in use | ✓ | ✕ |
| Broad server-side SDK language coverage (10+ languages) | ✓ | ~ |
| Higher reviewer-rated ease of setup and support | ✕ | ✓ |
| AI-powered personalization and audience segmentation | ~ | ✓ |
| Large bank of named, outcome-quantified case studies | ~ | ✓ |
| Budget-conscious mid-market entry point | ✕ | ~ |
| Post-merger scale and larger aggregate review corpus | ✓ | ~ |
Check = clear edge. Tilde = capable but not the stronger pick. Cross = outside the model.
Strengths & tradeoffs
Both tools run credible client-side and server-side experimentation. The real differences show up in company scale, platform breadth, and how each tool rates with reviewers on ease of use and support, and each side wins rows the other does not.
| Axis | Optimizely | AB Tasty |
|---|---|---|
| Platform breadth | Combined content/commerce/experimentation suite (Optimizely One); genuine consolidation play for enterprises already on the CMS/commerce stack | Focused on experimentation and personalization; adds an AI-powered Audience Manager and CDP integrations |
| Engineering depth | 10+ server-side SDK languages, sub-millisecond flag evaluation; favored by engineering-heavy orgs | Server-side testing and flagging via Flagship, narrower published SDK coverage |
| Ease of use | Reported learning curve requiring coding knowledge, per G2 | Marketer-friendly visual editor; non-technical teams cited as able to launch tests without engineering |
| Support | Weaker per G2’s own comparative data versus category peers | Consistently praised in reviews; multiple G2 support and relationship badges |
| Ratings | 4.2/5 G2 on comparable review volume (~411 reviews) | 4.4/5 G2 on comparable review volume (400+ reviews) |
| Company scale | Larger post-merger scale, backed by Insight Venture Partners; longer aggregate review corpus (918 across all products) | Smaller company (~300 to 344 employees), shorter operating history |
| Case studies | Specific named logos not independently confirmed in this research pass | 112 named case studies with quantified outcomes (Ulta, GANNI, On The Beach) |
| Pricing signal | Third-party estimates commonly ~$36K/yr entry, scaling into $200K+/yr for full suite | Third-party estimates ~$1K to $3K/mo mid-market, ~$45,134/yr average reported contract |
Ratings & track record
| Metric | Optimizely | AB Tasty |
|---|---|---|
| G2 rating (product page) | 4.2 / 5 | 4.4 / 5 |
| G2 reviews (product page) | ~411 (Web Experimentation) | 400+ |
| G2 rating (aggregate/seller page) | 4.2 / 5 (918 reviews, all Optimizely products) | 4.4 / 5 (330 reviews, seller page; discrepancy vs product page flagged) |
| Notable recognition | Post-merger scale via Insight Venture Partners; combined DXP suite | Multiple G2 “Easiest To Do Business With” and “Best Relationship” badges (self-reported, verify against G2 directly) |
On raw rating, AB Tasty edges ahead at 4.4/5 against Optimizely’s 4.2/5, and both figures rest on comparable review volume in the 400-plus range for the products compared here, so the gap is directionally meaningful rather than noise. Optimizely’s aggregate review count is larger (918) but spans its full product portfolio, not just Web Experimentation, so treat that figure as a company-scale signal rather than a like-for-like rating comparison. Neither vendor’s G2 comparison page could be fetched directly for this dossier (blocked for scrapers), so both ratings are sourced from indexed search snippets; re-verify both G2 pages live before publishing anything that depends on exact figures.
Both tools’ data is sourced from publicly available information as of July 2026. Neither vendor publishes list pricing; all figures are third-party estimates, not vendor-quoted numbers. Optimizely’s HQ and some customer references could not be verified to a single canonical source. Prices, ratings, and plan terms change, so verify directly with each vendor before buying. This comparison is independent; we take no affiliate or referral fees from either vendor.
Frequently asked questions
What is the difference between Optimizely and AB Tasty?
Is Optimizely better than AB Tasty?
Which is cheaper, Optimizely or AB Tasty?
Does Optimizely or AB Tasty offer a free trial?
Which tool is easier for non-technical marketing teams to use?
Which tool has stronger client case studies?
Sources and references
- G2: Optimizely Web Experimentation reviews (4.2, ~411 reviews) (accessed July 2026)
- G2: Optimizely seller page (aggregate, 918 reviews across all Optimizely products) (accessed July 2026)
- G2: AB Tasty reviews (4.4, 400+ reviews) (accessed July 2026)
- G2: Optimizely Web Experimentation alternatives/competitors data (accessed July 2026)
- Optimizely plans (vendor) (accessed July 2026)
- AB Tasty pricing (vendor) (accessed July 2026)
- Conversion Wax: Optimizely Web Experimentation pricing estimate (accessed July 2026)
- AB Tasty customer case studies (accessed July 2026)
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