dosii

PRIVACY

Privacy Policy

Last updated: September 10, 2026

The short version

Dosii's iPhone and Android apps perform calculator work locally and do not require an account. Separately, this marketing website uses PostHog to measure visits, demo engagement and App Store button clicks, and a configured Meta Pixel for page views and App Store clicks. The website never sends vial, dose, water, calculator, account, or health values to Meta.

Inside the Dosii app

  • Calculator values and results stay on your device. Android cloud backup is disabled.
  • No Dosii account or cloud calculator history is required.
  • The app does not include analytics or advertising SDKs.
  • Deleting the app deletes its locally stored data.

App updates and external links

The app may contact Expo's update service to check for and download app updates. That service receives ordinary network information, such as an IP address, and app update information, such as the platform and app version. Calculator inputs and results are not included in update requests. Opening this privacy page or another external link uses your browser and the website's data practices apply. Calculator work remains available offline.

On this marketing website

When the site's public Meta Pixel ID is configured, the site loads Meta's browser Pixel and sends one PageView when a page loads and one AppStoreClick when an App Store link is activated.

Event fields are limited to sanitized campaign_id and creative_id values when those values are present in the landing URL. Meta may also receive ordinary browser and network information as part of loading its Pixel and may process that information under Meta's own terms and privacy policy.

Before measurement starts, the site keeps only bounded campaign identifiers and standard UTM campaign labels in the browser URL, removing other query values and fragments. These labels are carried across this site's pages. Do not put personal or health information in campaign labels.

PostHog website analytics

We measure page visits, demo starts and completions, App Store button clicks, and when the web calculator or units converter is used. The calculator and converter events never include the values you enter. Events include campaign labels, referring website domain, page address and basic browser/device information. Referrer query strings are removed. PostHog receives ordinary network information when processing requests.

PostHog runs in cookieless mode, without analytics cookies or browser storage. It derives a daily visitor identifier on its servers; this is approximate visitor measurement, not identification of you as a customer. Person profiles, automatic click/form capture, session recordings and surveys are disabled. It does not receive calculator inputs from the iPhone or Android app. See PostHog's privacy policy.

Measurement limits

  • Advanced matching is disabled.
  • No server-side Conversions API is used.
  • No retargeting is configured for this phase.
  • No calculator, health, account, email, or other personal values remain in the measured browser URL or are added to event payloads or App Store URLs.
  • If the public Pixel ID is absent or invalid, the site does not load Meta's script or emit Meta events.

Changes to this policy

We will update this page when app or marketing-site data practices change.

Contact

Questions about this policy? Reach us at support@dosii.app.

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