Privacy Policy

Effective November 7, 2026 · Applies to the Parquet Reader apps and this website

Your files stay with you

Parquet Reader opens and processes your files on your computer. Local files are never uploaded. File contents, file names, query text and query results are never sent to us: by design, the app has no mechanism to do so.

Cloud storage

If you choose to open files from Amazon S3, S3-compatible storage, Google Cloud Storage or Azure Blob Storage, the app connects from your computer directly to that provider, using the credentials you give it. The provider receives the requests needed to read your data, including the paths of the files you open. Your data goes from the provider to your computer and never passes through our servers. Access is read-only.

Keys and sign-in tokens stay in your computer's secure credential store and are sent only to the provider they belong to. If you use an AWS or Google Cloud setup already on your computer, the app reads it and never changes it. Sign in with Microsoft happens in your browser, and we never see your password. Removing a connection removes its stored keys.

Your use of these services is covered by each provider's own terms and privacy policy.

Accounts are optional

You can use the app without creating an account. If you choose to sign in (with Apple or Google) — for example, to use a Pro subscription on more than one Mac — we store the minimum needed to operate the account:

• your name and email address as provided by the sign-in provider (Apple lets you hide your real email);
• a provider identifier used to recognize your account;
• your subscription status (active plan and expiry), as reported by Apple.

This is stored on our authentication server and used solely to operate sign-in and subscription access. We do not sell or share this data, and we do not use it for advertising.

Purchases

Subscriptions are processed by Apple through the App Store. We never see or store your payment details. To verify a purchase, the app may send Apple's signed transaction receipt to our server; it contains subscription metadata only.

Website

This website does not use cookies, advertising trackers, or fingerprinting. We may use privacy-friendly, cookie-less aggregate analytics to count visits.

Data deletion

To delete your account and all associated data, email m.bvynnytskyi@gmail.com from the address linked to your account. Deletion is completed within 30 days.

Changes & contact

If this policy changes, the new version will be posted at this address with an updated effective date. Questions: m.bvynnytskyi@gmail.com.