Privacy Policy

This policy applies to the public ViaVision website, the ViaVision iOS application, support interactions, and other direct communications that link to or reference this policy.

It is provided by Individual Entrepreneur Ilia Egorov, who operates ViaVision for the website and the current direct-to-consumer iOS app experience, unless a separate customer deployment or written contract states otherwise.

If ViaVision is offered to you through a clinic, healthcare provider, insurer, employer, or other business customer, that organization may control or jointly control some processing activities. In those cases, its notice or contract may supplement this policy.

We collect information directly from you, automatically from your device, and from app workflows that are necessary to provide measurement, support, security, and operational functionality.

• Contact and profile information you provide, such as your name, email address, company details, support messages, and other information you submit through forms or in-app support flows.
• App and device information, such as device model, operating system version, language, IP address, app version, identifiers, timestamps, crash logs, diagnostic data, and security logs.
• Measurement inputs captured through the camera or other enabled app components, which may include face video, image frames, motion, lighting, and other physiological signal inputs used to perform a measurement. In the current app version, these raw camera inputs are processed transiently and are not retained after the measurement flow completes.
• Derived outputs and related records, such as heart rate, HRV, respiratory rate, SpO2, blood pressure estimation, stress indicators, risk scores, trends, session history, and similar digital biomarker results shown or generated by the app. If these outputs are preserved, they are generally kept locally on the device in the current app version unless a separate deployment or future feature states otherwise.
• Website and product analytics data, consent preferences, attribution data, and usage events, subject to applicable consent requirements and device or browser settings.

The iOS app may request access to device permissions that are necessary for the feature you choose to use. Camera access is typically required to perform measurement flows based on optical or facial signals.

The current consumer app version does not require creation of a standalone ViaVision account and does not maintain a dedicated end-user cloud backend for routine app use.

Processing for the current app version is designed around on-device measurement and app-side functionality. If optional permissions or optional analytics are available, they are used only for the feature you enable or the consent you provide.

We use personal data and measurement-related data only for legitimate service, safety, support, product, and legal purposes.

• Provide website and app functionality, including measurement sessions, result display, support, communications, and service administration.
• Maintain security, prevent fraud or abuse, investigate incidents, and protect users, systems, and business operations.
• Troubleshoot bugs, monitor performance, improve reliability, and evaluate product quality and measurement workflows.
• Understand product engagement, traffic patterns, and campaign performance where analytics or marketing measurement is enabled and legally permitted.
• Comply with legal obligations, enforce our terms, defend claims, and respond to lawful requests.

Because ViaVision measures physiological signals and derives health-related outputs, some inputs and outputs processed through the app may qualify as data concerning health under GDPR, UK GDPR, or similar laws. In some contexts, camera-derived signals may also be treated as biometric-related data.

Where those laws apply, we rely on one or more lawful bases depending on the context, such as performance of a contract, legitimate interests for security and support, consent for optional analytics or marketing, and explicit consent or another valid condition where special-category or health-related processing requires it.

If you use ViaVision through a business customer, clinical workflow, research program, or regulated deployment, additional terms, consents, and governance documents may apply to health-data processing.

We do not sell personal data collected through the website or app. We share data only where needed to operate the service, support subscriptions or analytics, protect the business, or comply with legal requirements.

The current app and service stack may include third-party providers such as RevenueCat for subscriptions, Amplitude and Mixpanel for analytics, Supabase for technical service components or operational tooling, and Google-linked service components where enabled in the app build or user flow. The exact data each provider receives depends on the feature that is active and your permissions, settings, and subscription actions.

• Infrastructure, hosting, storage, analytics, diagnostics, customer support, communications, and security providers acting on our instructions.
• Business customers, partners, clinics, insurers, or white-label operators when they provide the deployment you use or are contractually responsible for the service relationship.
• Professional advisers, auditors, and authorities where disclosure is required by law or reasonably necessary to establish, exercise, or defend legal rights.
• A successor or transaction counterparty in connection with a financing, acquisition, restructuring, or sale of assets, subject to appropriate confidentiality and transfer safeguards.

ViaVision and its service providers may process data in countries other than the one where you are located. This can include transfers to cloud, analytics, or support providers operating internationally.

Where required, we use appropriate transfer safeguards such as standard contractual clauses, equivalent contractual measures, or another lawful transfer mechanism recognized in the relevant jurisdiction.

In the current app version, raw camera video and image frames used for measurement are not retained after the measurement flow completes.

Because the current consumer app version does not use a standalone user account or dedicated end-user backend, many app-side records remain only on the device unless a specific third-party SDK, subscription event, or later feature requires limited technical processing.

Retention periods can differ by data category and provider. Website inquiries, subscription-related records, analytics data, and legally required business records may be retained for as long as needed for support, accounting, security, dispute resolution, and legal compliance. When data is no longer needed, we delete it, aggregate it, or de-identify it as appropriate.

To make a privacy request, ask a question, or appeal a request outcome where available, contact us at support@neccessory.com. We may need to verify your identity or authority before completing the request.

Because the current consumer app version does not maintain a standalone user account backend, deleting the app from your device may be the primary way to remove locally stored app data from the device itself. This does not automatically delete website inquiry records, subscription records, or third-party analytics records that we or our providers may still hold under applicable retention requirements.

If you use ViaVision through a business customer, you may also need to contact that organization, especially where it acts as the controller for your account or deployment.

• You may have rights to request access, correction, deletion, portability, restriction, or objection, depending on your location and the law that applies.
• You may withdraw consent where processing is based on consent, including optional website analytics or similar permissions, without affecting prior lawful processing.
• You may use browser controls, device settings, or in-app settings to manage certain permissions or analytics behavior.

We use reasonable technical, organizational, and access-control measures designed to protect the confidentiality, integrity, and availability of personal data and measurement-related data.

No system can guarantee absolute security. You should use the website and app responsibly and avoid sending credentials, payment cards, patient records, or other high-risk data through channels that are not explicitly designated as secure for that purpose.

We may update this Privacy Policy from time to time to reflect changes in the product, law, or our processing practices. The latest version becomes effective when posted with a revised date.

Questions about this policy, website data handling, or app-related measurement privacy can be sent to the contact address listed on this page.