whats-best.ai

Conversion Optimization · head-to-head

Convert Experiences vs VWO

Convert Experiences

Rest of world

Panel rating

Sovereignty: 2 of 4 dimensions proven

Full evaluation →

VWO

Rest of world

Panel rating

Sovereignty: 1 of 4 dimensions proven

Full evaluation →

The short answer

Six criteria lean Convert Experiences' way; performance impact leans VWO's. Data and integrations (5.3 vs 3.3), sovereignty (4.0 vs 2.0) and pricing transparency (5.0 vs 1.2) go 6 judges to 0 for Convert Experiences; statistical rigour goes 3–0 with 3 ties (3.7 vs 2.8), consent and tracking 4–0 with 2 ties (2.8 vs 1.3), and experimentation scope is 4.3 vs 4.0 with 4 ties. Performance impact leans VWO 5 judges to 1 (2.7 vs 2.0); the Convert Experiences verdict cites the Akamai delivery claim and the $1000/year CNAME option, reporting no script-size or Core Web Vitals figures. Both attribute sets list US-default data residency and US Cloud Act exposure; VWO's policy states customer data sits in Washington DC and Dallas, while Convert Experiences documents visitor data in Europe on German servers. Weighted totals: 3.3–4.7 for Convert Experiences, 2.1–3.5 for VWO — pricing unweighted for VWO, which publishes no prices.

Choose Convert Experiences if

  • You need API access, an MCP server and 90+ integrations on all plans plus raw-data CSV export; data and integrations goes 6 judges to 0 for Convert Experiences (5.3 vs 3.3).
  • You need published prices before purchase: overuse rates of $399 per 100K on Growth and $699 per 250K on Pro are published and switchable off, while VWO is custom-only — pricing transparency leans Convert Experiences 6 judges to 0 (5.0 vs 1.2).
  • You need visitor data documented to stay in Europe on German servers; sovereignty goes 6 judges to 0 for Convert Experiences (4.0 vs 2.0), noting its contract runs against a Delaware entity.
  • You want full-stack testing with feature flags and a sample ratio mismatch check on the entry plan; experimentation scope leans Convert Experiences 2–0 with 4 ties (4.3 vs 4.0).
  • Consent and tracking documentation for your visitors matters to your review: VWO's privacy policy states it applies to the customer only and not to visitors, and this criterion leans Convert Experiences 4 judges to 0 with 2 ties (2.8 vs 1.3).

Choose VWO if

  • Performance impact is your deciding criterion: 5 judges lean VWO and 1 leans Convert Experiences (2.7 vs 2.0), the one criterion the benches lean VWO's way.
  • The testing menu decides it for you: experimentation scope is 4.3 vs 4.0 with 4 ties, and VWO's captured pages list A/B/n, split and multivariate testing, visual and code editors, multi-arm bandit campaigns and single-page-application support.
  • Your procurement runs on custom quotes and you want to start with a free trial or demo: VWO is custom-only with a free trial and demo, and unpublished prices are not weighted against it.
  • US data residency meets your requirements: VWO's privacy policy states customer data is stored centrally in Washington DC and Dallas, and its data-residency attribute reads US by default.

Read this comparison as one judge. Each weighs the same scores by what they care about.

The E-Commerce Manager

Owns a shop where a tenth of a second of load time shows up in the conversion rate. Wants personalisation that can be tested against a control, a snippet that does not flicker the product page, and a traffic-based price that does not jump a tier every December.

Convert Experiences

This judge's pick

VWO

Criterion by criterion

Experiment types & delivery

Convert Experiences

The captured pages show a genuinely broad test menu — multivariate, multi-page, split-URL redirects, behavioural targeting and full-stack feature flags on the top tier — which covers most of what I would run on a shop. We found no public information on personalisation at all, let alone personalisation tested against a control, and full-stack appears as a feature name with no documented SDKs or languages.

VWO

The pricing page names A/B/n, split and multivariate tests, cross-domain testing, mutually exclusive groups, and separate personalisation and feature management modules, which is more than a basic visual editor. We found no public information on server-side SDKs, edge delivery, or personalisation that can itself be tested against a control — the captured evidence is a plan feature grid, not delivery documentation. I can see how to test my product page, but not how I would run a holdout against my personalisation.

Statistical method & guardrails

Convert Experiences

A sample-ratio-mismatch check even on the entry tier, plus sequential testing and a multi-arm bandit on the top tier, are the guardrails I want before trusting a winner on my checkout. But we found no public information naming the statistical method, and no confidence intervals or sample-size calculator, so I cannot see what actually decides the winner.

VWO

The Pro plan names guardrail metrics and sample ratio mismatch detection, which are real protections I value. But we found no public information naming the statistical method, sample-size or duration guidance, or any protection against reading a result too early — a winner figure without a documented method is exactly what I cannot defend to my accountant.

Consent & visitor tracking

Convert Experiences

First-party cookies only with a six-month non-PII lifetime, no IP storage for identity, and an opt-out link my shop can place are a real start on ePrivacy. We found no public information on what the script does before consent is given, on consent-management-platform integration, or on how testing modes map to the German consent rule — and the privacy notice says authorised third parties may track visitors including IP addresses.

VWO

The privacy policy states it applies only to the customer and not to the visitors of the customer's website, and we found no public information on what the test script stores on a device or when it runs relative to consent. A tracking opt-out for users and named privacy contacts are the extent of the visitor-facing material captured.

Snippet performance & flicker

Convert Experiences

My product pages cannot afford a flicker, and this is the thinnest story in the captures: Akamai delivery that will "deliver your content fast" is the whole of it. We found no public information on script weight, asynchronous loading, anti-flicker handling, or any published Core Web Vitals figures.

VWO

The CDN runs on named providers across ten locations including Germany, the Netherlands, London and Paris, and self-hosting appears as an Enterprise feature. We found no published script size, no flicker handling described, and no Core Web Vitals figures — on a product page where a tenth of a second shows in conversion, that silence is the whole story.

Analytics, data export & integrations

Convert Experiences

Raw data export to CSV plus API access and ninety-plus integrations on every plan means a test result can be checked against my own numbers, which I insist on. We found no public information on visitor-level streaming to a warehouse, on API limits, or on warehouse-native analysis.

VWO

An integrations page exists, Google Analytics is named, and API access plus pull-based integrations appear in the plan feature lists. We found no public information on exporting results, visitor-level data, or documented API limits — from what is captured I cannot verify a winner against my own analytics data.

European sovereignty

Convert Experiences

The line that matters to me is stated plainly — visitor data stays in Europe on German servers, and Frankfurt hosting ships on every plan. Against that, the contract is with a Delaware entity under Delaware law, my account data sits in the US under the Data Privacy Framework, the snippet rides Akamai, and the list of authorised third parties the privacy notice points to is not among the captured pages.

VWO

All customer data is stated to be stored centrally in Washington DC and Dallas, USA, with the contracting entity Wingify Software Pvt. Ltd. in India; the CDN includes EU locations but the storage does not. Standard contractual clauses and an Article 27 EU representative are documented, and we found no public information on EU data residency for visitor data or a subprocessor list.

Pricing transparency

Convert Experiences

The traffic metric, per-tier limits and overuse rates are public, overuse can be switched off, and legacy plans are honoured — that keeps a December traffic spike from re-tiering my invoice. But we found no public information on the base tier prices or seats, the terms say some features may require additional fees, and the Enterprise tier is price on request, so the annual invoice is not computable from public pages alone.

VWO

The pricing page states there are no fixed plans, only a custom proposal built around goals and scope, and a free trial and free tools exist — but no tier price, traffic metric definition, limit, or overage rate is published anywhere captured. With monthly tracked users only appearing inside a FAQ question, my December invoice is not computable from public pages.

Sovereignty, side by side

Dimension Convert Experiences VWO
Legal entity Not determined Not determined
Ownership Not determined Not determined
Data residency US by default Not determined
Subprocessors US CLOUD Act reach US CLOUD Act reach

Facts, side by side

Only facts both products carry under the same definition — anything else would not be a fair row.

Compliance · Certifications EU SCCs · EU-US DPF · Swiss-US DPF · 2020-01 · 2018-05 · 2020-081

captured 1 Oct 2026 · Report an error

industry-leading certifications, global and regional legal requirements met2

captured 1 Oct 2026 · Report an error

Data · Retention necessary for processing purposes · legal obligations such as tax3

captured 22 Sep 2026 · Report an error

deleted on browser close · fixed period or manual deletion4

captured 1 Oct 2026 · Report an error

Legal · Address 901 N Market St Suite #100, Wilmington, DE 19801, United States5

captured 1 Oct 2026 · Report an error

703, 7th Floor, KLJ Tower North, Netaji Subhash Place, Pitampura, New Delhi – 110034, India4

captured 1 Oct 2026 · Report an error

Legal · Effective date 2025-07-116

captured 22 Sep 2026 · Report an error

2025-02-287

captured 22 Sep 2026 · Report an error

Legal · Entity Convert Insights Inc.5

captured 1 Oct 2026 · Report an error

Wingify Software Pvt. Ltd.4

captured 1 Oct 2026 · Report an error

Product · Capabilities A/B Testing · MCP Server · Multivariate Testing · Multi-page Testing · Audience Targeting · A/B Testing Goals · Full-stack Experimentation3

captured 22 Sep 2026 · Report an error

A/B tests · heatmaps · session recordings · push notification subscriptions · analytics4

captured 1 Oct 2026 · Report an error

Product · Enterprise features Adds unlimited projects, BYOID, data segregation, redlining contracts, RFIs/RFPs, custom payments & terms, enterprise SLA8

captured 22 Sep 2026 · Report an error

All Targeting, Trigger & Reporting · Rich Widgets Library in Editor · Self Hosting · ROI Dashboard · Approval Workflow · Mutually Exclusive Groups · Single Sign On (SSO) · API Access · 24x7 Support9

captured 22 Sep 2026 · Report an error

Product · Growth features A/B testing, split URL/redirect testing, deploys, advanced targeting & goals, heatmaps, QA wizard, SRM check, collaborators8

captured 22 Sep 2026 · Report an error

Visual (WYSIWYG) & Code Editor · Unlimited Experiments, Variations & Metrics · Basic Targeting, Triggers & Reporting · Multi-Arm Bandit & Rollout Campaigns · QA Assistant · Single Page Application (SPA) Support · Data Platform Access · Wingz AI Core Plan · Basic Support9

captured 22 Sep 2026 · Report an error

Product · Inputs baseline · MDE · confidence · power · tails · variants · correction method10

captured 1 Oct 2026 · Report an error

visitors · conversions · control group · variant11

captured 1 Oct 2026 · Report an error

Product · Metrics conversion rate, revenue per visitor, products per visitor10

captured 1 Oct 2026 · Report an error

conversions · engagement · revenue2

captured 1 Oct 2026 · Report an error

Product · Pro features Adds multivariate, multi-page, full stack & feature flags, bandit, sequential testing, change history, SSO, guided onboarding, phone support8

captured 22 Sep 2026 · Report an error

Advanced Targeting, Triggers & Reporting · Guardrails Metrics · Sample Ratio Mismatch Detection · Multi Variate Testing · Cross Domain Testing · User Collaboration · Pull Based Integrations · Advanced Support9

captured 22 Sep 2026 · Report an error