Last updated: May 24, 2026
Metryval is operated by Metryval Pte Ltd, a Singapore private limited company. The public operator byline on Substack, X (@metryval), and editor correspondence is Tomas Cantor— a locked pseudonym disclosed openly here so the operator’s byline is portable across surfaces without conflating with any individual person’s public identity.
For data-handling questions in this document, “we” means Metryval Pte Ltd. The full controller-of-record on any future cross-border data-transfer agreement is the same Pte Ltd entity.
When you take the Metryval assessment, we collect:
We do not sell, rent, or share your personal information with third parties for their marketing purposes. Period. Your assessment data is never used for advertising targeting and never used to train third-party AI systems.
For scientific calibration and norming, we create de-identified datasets that contain only dimension vectors, item responses, and timing patterns — with all personal identifiers (user IDs, email addresses, IP addresses, and device fingerprints) permanently removed. This de-identified data cannot be linked back to you and may be used for research, calibration, and academic publication.
Three AI-regulation disclosures live alongside this privacy policy. Each has its own canonical page; this section is the index.
Specific rights depend on which jurisdiction you reside in. Across all three regimes below, the request channel is the same email address; we will route the request to the correct procedure.
If you are a California or US resident (CCPA). You have the right to:
If you are an EU / EEA / UK resident (GDPR + UK GDPR). You have the right to:
If you are a Singapore resident (PDPA). You have the right to:
To exercise any of these rights, email privacy@metryval.com. We respond to verified requests within the regime’s required window (45 days CCPA, 30 days GDPR, 30 days PDPA).
Your data is stored in Supabase (US East region) with row-level security policies. All data in transit uses TLS encryption. We implement technical safeguards to prevent re-identification of de-identified research datasets.
For EU / UK users, US storage is a cross-border transfer under GDPR. We rely on the EU–US Data Privacy Framework where applicable; for users outside that framework’s scope, we use Standard Contractual Clauses (SCCs) as the transfer mechanism.
We use a single essential cookie (metryval_uid) to maintain your session and link your assessment results to your account. We do not use advertising cookies, tracking pixels, or third-party analytics cookies. We use server-side first-party analytics only; no IP addresses are stored alongside event data.
Metryval is not directed to children under 16. If you are under 16, do not create an account or submit assessment responses. If we learn that we have collected personal data from a child under 16, we will delete that data promptly.
Material changes are announced via the “Last updated” date at the top of this page and (where you have provided an email address) via an email notice at least 30 days before the change takes effect. Continued use of Metryval after the effective date constitutes acceptance.
Privacy questions: privacy@metryval.com
Operator correspondence: tomascantor@metryval.com
Legal entity: Metryval Pte Ltd, Singapore. ACRA UEN available on request.