whats-best.ai

Conversion Optimization

Omniconvert

EU-Made Report an error

Panel rating · 6 judges · How to read the stars

Category median

Sovereignty: 1 of 4 dimensions proven

0–5 in half steps. 5 means the rubric's top anchor is met on the evidence.

by Omniconvert SRL · www.omniconvert.com

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

The CRO Consultant

Weighted verdict

Sets up testing programmes for several clients and has to recommend a platform each can afford and defend. Reads for multi-project management, clean analytics integration, a consent setup a client's DPO will sign off, and a traffic metric she can estimate before the contract.

Same scores as the panel view — this lens weights them the way this judge cares.

Scored by The CRO Consultant

Experiment types & delivery

How this is scored

What can be tested and where: client-side changes through an editor, server-side and feature experiments through SDKs, multivariate and multi-page tests, and personalisation — judged on what the documentation shows rather than on the feature grid.

0 — Simple A/B split of one page element through a visual editor; no server-side option, no targeting beyond URL.

3 — Client-side A/B and split-URL tests with basic audience targeting, and no SDK or server-side delivery.

5 — Client-side and server-side experiments through documented SDKs for common languages, multivariate and multi-page tests, audience targeting on behaviour and attributes, and rule-based personalisation.

8 — Feature-flag-based experiments sharing one audience and metric model with web tests, mutually exclusive experiment groups, holdouts, edge or CDN delivery, and personalisation that can itself be tested against a control.

10 — One experimentation programme across every surface: web, app, server and edge from the same platform, experiment interactions managed, a documented experiment lifecycle from hypothesis to archived result, and a library of past results a team can search.

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The CRO Consultant

A/B/n, split-URL and multivariate tests with a code editor and Chrome visual editor are shown, alongside rule-based personalisation by segment, geolocation, device and behaviour across a strong set of 40+ targeting parameters. Everything evidenced is client-side, though — we found no public information on server-side SDKs, feature flags or edge delivery, and the vendor itself warns experiments can overlap and influence each other's results. 1 2 5 6 8

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Statistical method & guardrails

How this is scored

Which statistics decide the winner and what protects the customer from misreading them. Scored on what the vendor documents: the method by name, how peeking and multiple comparisons are handled, and whether sample ratio mismatch is detected.

0 — A "winner" or "probability to beat" figure with no documented method, no stated sample-size guidance and no warning against stopping early.

3 — The method is named (frequentist or Bayesian) but its assumptions are not documented, and nothing prevents a test from being called while it is still underpowered.

5 — Documented method with confidence or credible intervals, a sample-size or test-duration calculator, and stated guidance on when a result may be read.

8 — Sequential testing or an equivalent documented protection against peeking, correction for multiple metrics or variants, sample ratio mismatch detection, variance reduction such as CUPED, and guardrail metrics that can stop a harmful test.

10 — The statistics are auditable: methodology published in enough detail to reproduce a result, the choice of method explained per use case, raw per-visitor data available for independent re-analysis, and the interface refuses to present an underpowered result as a conclusion.

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The CRO Consultant

Both Bayesian and frequentist engines are named, and the sample-size calculator takes power, significance and minimum detectable effect, returns weeks-to-run with stated minimums (95% confidence, 80% power), and warns against detectable effects under 10%. Beyond that we found no public information on confidence or credible intervals, documented assumptions, sequential protection against peeking, or sample ratio mismatch detection — and the AI product's automatic stopping at statistical significance has no documented method guarding it. 1 2 7

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Snippet performance & flicker

How this is scored

The cost the client-side snippet imposes on the page it tests: blocking load, flicker of original content, script weight and the effect on Core Web Vitals — scored on what the vendor measures and publishes, not on "lightning fast".

0 — A synchronous snippet with no stated size, no flicker handling and no mention of performance.

3 — An anti-flicker snippet that hides the page until the test loads, with a timeout, and no published figures for script size or load cost.

5 — Script size and loading behaviour documented, asynchronous loading option, flicker handling explained with its trade-off, and CDN delivery of the snippet.

8 — Published performance figures including impact on Core Web Vitals, a self-hosting or first-party-domain option for the script, per-project bundles containing only active experiments, and a server-side or edge alternative for flicker-sensitive tests.

10 — Performance is a stated commitment: measured overhead published and maintained, flicker eliminated by edge or server-side rendering as a documented path, and tooling that shows the customer what their own configuration costs the page.

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The CRO Consultant

The only performance-relevant fact on the captured pages is that a script line must be installed in the site's source code. We found no public information on script weight, loading behaviour, flicker handling, CDN delivery or any Core Web Vitals impact. 4

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Analytics, data export & integrations

How this is scored

Getting results and raw data out: integration with analytics and tag management, export of visitor-level results, warehouse-native analysis, and an API — because an experiment result that cannot be checked in the customer's own data is a claim, not a finding.

0 — Results visible in the vendor's dashboard only; no export, no analytics integration, no API.

3 — CSV export of aggregated results and one analytics integration, with no visitor-level data and no documented API.

5 — Integrations with common analytics and tag managers, export of results, and a documented API for managing experiments and reading results.

8 — Visitor-level raw data export or streaming to a data warehouse, warehouse-native analysis on the customer's own metrics, CDP integration for audiences, and an API with stated limits.

10 — The platform treats the customer's warehouse as the source of truth: metrics defined once and computed there, full historical experiment data exportable in open formats, and a versioned API a team can build its own programme tooling on.

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The CRO Consultant

Integrations with Google Analytics 4, Google Tag Manager, Hotjar, Piwik, Shopify and Zapier are clearly evidenced, the vendor states it does not access or store data from the services it integrates with, and API access is listed on the pricing page. We found no public information on the API's scope or limits, export of results, or any visitor-level raw data path to a customer's warehouse — a result checked only in the vendor's dashboard is a claim, not a finding. 1 2 4 6 8

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European sovereignty

How this is scored

Where visitor data is processed and stored and who the contracting entity is. Independently sourced by the sovereignty pipeline; weighted higher here than in categories that hold only the customer's own data, because the script runs on every visitor to the customer's site and their behaviour is what the platform records.

0 — Non-EU vendor and contracting entity, hosting unstated, subprocessors unnamed, and visitor data leaving the EU without a stated safeguard.

3 — EU data residency offered as an option or an enterprise add-on while the contracting entity is non-EU, or the subprocessor list is absent.

5 — EU processing of visitor data as standard and an EU contracting entity, but parts of the chain — CDN, support access, analytics — are non-EU without an explained safeguard.

8 — EU hosting on named infrastructure including the delivery of the snippet, EU contracting entity, subprocessor list published, and a DPA covering the visitor data the script collects.

10 — Sovereign end to end and evidenced: vendor, entity, hosting, snippet delivery and every subprocessor European, certification published, and no visitor data reaching a non-EU party at any point.

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The CRO Consultant

The contracting entity is Omniconvert SRL in Bucharest under Romanian courts, and several subprocessors are named with places of processing — several of them in the US, including payments, traffic and hosting. We found no public information on where the visitor data itself is hosted; the privacy text says data is processed at the owner's operating offices and wherever other parties are located, with cross-border transfers possible, and the full processor list is available only on request. 3 4

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Pricing transparency

How this is scored

A category priced by traffic — monthly tracked users, visitors or impressions — where the tier a site lands in depends on numbers the buyer has to estimate. Whether a buyer can compute the real annual cost including traffic limits, overage, server-side or personalisation modules and seats — from public pages alone.

0 — No public prices at all; every tier is a sales conversation.

3 — A starting price or a free tier exists, but the traffic metric, the limits and what happens above them are unstated — the invoice is unknowable.

5 — Tier prices public with the traffic metric and its limits defined, but at least one commonly needed piece (server-side SDKs, personalisation, overage) is unpriced or "contact sales".

8 — Every tier priced publicly with the traffic metric defined, limits, overage rates, module prices, minimum term and VAT treatment stated.

10 — Complete price computability: annual invoice derivable for a given traffic volume, set of modules and team size, with overage and every add-on published.

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The CRO Consultant

A free tier with no credit card required and a 30-day free trial are public, and the traffic metric — tested users — comes with visible tier boundaries from 50K up to above 2M, so a buyer can at least locate their tier. But no price figures for any paid tier appear on the captured pages, SSO pricing 'will be discussed after the trial', and we found no public information on overage rates or module prices, so the annual invoice cannot be computed before the contract. 2 4 6

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European sovereignty — proven facts

1 of 4 dimensions proven

Built only from facts shown on the vendor's own pages. A dimension we could not prove is left open, not scored as zero.

Ownership Not determined — uncited Report an error
Data residency Not determined — uncited Report an error
Subprocessors Not determined ⚠ unverified — uncited Report an error

Where this could be wrong

What we left out

A claim that does not survive our checks costs us the claim, not the page. This is what was taken off this one.

Sources (8)

The pages every claim on this page was read from — each one checked, dated, and kept verifiable.

  1. 1 Vendor homepage www.omniconvert.com Checked 22 Sep 2026 Details →
  2. 2 Pricing page www.omniconvert.com Checked 22 Sep 2026 Details →
  3. 3 Privacy policy www.omniconvert.com Checked 22 Sep 2026 Details →
  4. 4 Terms of service www.omniconvert.com Checked 22 Sep 2026 Details →
  5. 5 Experiment types & delivery — found from sitemap www.omniconvert.com Checked 1 Oct 2026 Details →
  6. 6 Experiment types & delivery — found from sitemap www.omniconvert.com Checked 1 Oct 2026 Details →
  7. 7 Statistical method & guardrails — found from sitemap www.omniconvert.com Checked 1 Oct 2026 Details →
  8. 8 Analytics, data export & integrations — found from sitemap www.omniconvert.com Checked 1 Oct 2026 Details →