MetaSyn Statistical Converter Privacy Policy

Effective / last reviewed: 29 August 2026 Applies to: MetaSyn Statistical Converter v1 Chrome extension
Privacy at a glance

MetaSyn Statistical Converter is designed to perform its supported statistical calculations locally inside the Chrome extension. The extension does not require an account and is designed without extension analytics, advertising, host permissions, browsing-history access, webpage-content access, saved calculation history, a MetaSyn calculation backend, or remote executable code. Statistical values entered into the converter are not intended to be transmitted to MetaSyn Academy or third parties.

The MetaSyn Academy website is separate from the extension. Optional website forms and site-level services are governed by MetaSyn Academy’s website privacy and governance practices.

1. Scope

This policy explains the data practices of the MetaSyn Statistical Converter Chrome extension and clarifies how those practices differ from activity on the supporting MetaSyn Academy website. It should be read together with the MetaSyn Statistical Converter methodology and validation page and its Chrome Web Store listing.

The extension, the Store listing, this policy and the Chrome Web Store Developer Dashboard disclosures must describe the same implementation. If a future release changes permissions, networking, storage, analytics, account features or other data practices, this policy must be updated with that release.

2. Statistical values entered into MetaSyn Statistical Converter

MetaSyn Statistical Converter uses statistical inputs such as effect estimates, confidence-interval bounds, standard errors, sampling variances and confidence levels only to perform the calculation requested by the user. The calculation is designed to occur inside the extension’s local execution environment.

The extension does not use those statistical inputs to create a MetaSyn Academy account, build a user profile, serve advertising, personalize marketing, or send calculation values to a MetaSyn Academy server.

3. Collection, transmission, sharing and sale

PracticeMetaSyn Statistical Converter v1 extension
Account or sign-in requiredNo
Extension analytics or usage telemetryNo
Advertising or ad-network codeNo
Transmission of calculation inputs to a MetaSyn backend/APINo
Sharing of calculation inputs with third partiesNo
Sale of calculation inputs or extension user dataNo
Saved calculation historyNo
Remote executable codeNo

Because calculation inputs are not designed to be transmitted to or stored by MetaSyn Academy, MetaSyn does not maintain a server-side history of those calculations for later retrieval or deletion.

4. Browser permissions and access

Browser capabilityMetaSyn Statistical Converter v1 extension
Host permissionsNo
Browsing-history accessNo
Webpage-content access or content-script injectionNo
Remote logic required to perform calculationsNo

MetaSyn Statistical Converter’s single purpose is to perform the supported statistical conversions described on its methodology page. The extension is therefore designed to request only the capabilities needed for that purpose and not to access unrelated browser or website data.

5. Storage and retention

MetaSyn Statistical Converter v1 is designed without saved calculation history. Closing or resetting the extension does not create a MetaSyn-hosted record of the statistical values entered for that calculation. If a future version introduces any persistence feature, that change will be disclosed before or with the release and reflected in the Chrome Web Store privacy declarations.

6. The MetaSyn Academy website is separate

Extension privacy ≠ website privacy

Using the MetaSyn Statistical Converter extension is separate from using metasyn.academy. The supporting website may use ordinary site-level services described in MetaSyn Academy’s Governance, Ethics & Stewardship page. Those website services are not part of MetaSyn Statistical Converter’s calculation engine and do not receive the statistical values typed into the extension.

If you voluntarily request the optional Statistical Converter Conversion and Verification Record through a MetaSyn Academy webpage form, the website processes the email address you provide so the requested resource can be delivered. That email address is not collected by the MetaSyn Statistical Converter calculation engine and is not one of the statistical inputs entered into the extension.

Submitting an Academy website form must not be a condition for installing or using the free MetaSyn Statistical Converter extension.

7. Chrome Web Store disclosure parity and Limited Use

The Chrome Web Store Privacy tab, Store listing, this policy and the released extension package must remain consistent. Google requires Chrome Web Store developers to keep privacy disclosures accurate, to limit data use to the extension’s disclosed single purpose, and to request the narrowest permissions necessary for that purpose.

Chrome Web Store Limited Use statement

MetaSyn Statistical Converter does not currently request or use information received from Google APIs. If a future version does so, the use of information received from Google APIs will adhere to the Chrome Web Store User Data Policy, including the Limited Use requirements.

8. Security and implementation changes

MetaSyn treats privacy statements as implementation claims, not marketing language. The release package should therefore be checked whenever a change could affect permissions, network requests, storage, analytics, telemetry or remote code behavior. If a future release introduces a new data practice, the relevant in-extension disclosure, this policy and the Chrome Web Store privacy fields must be updated consistently.

9. Contact and support

Questions about MetaSyn Statistical Converter, its methodology, technical behavior or this privacy policy can be sent through MetaSyn Academy’s Contact & Academic Support page.

10. Related MetaSyn pages

Authoritative Chrome Web Store references