Privacy Policy

Short version

Pink Print lets you pick a photo from your own Photos library and uses Apple's Vision framework (VNGenerateImageFeaturePrintRequest) on-device to extract a roughly 4,096-dimensional image similarity embedding. The feature print, a 512-pixel thumbnail, and the note you typed all stay on your device. Pink Print also computes a distance score between the new feature print and the previous entry to surface how visually similar today's pick is to yesterday's. There are no accounts, no analytics, and no third-party SDKs that contact a server. The only network calls the app makes are to Apple's StoreKit when you choose to subscribe or unlock the Lifetime tier.

Who we are

Pink Print is published by Danielius Studio LLC, a Wyoming limited liability company at 30 N Gould St, Suite #5280, Sheridan, WY 82801, USA (“we”, “us”).

The feature print is NOT a face print or fingerprint

The word “print” in the name and in the underlying Apple API (VNGenerateImageFeaturePrintRequest) refers to an image similarity embedding: a numeric vector that summarizes the visual content of a whole photo so that two visually similar photos produce two numerically close vectors. It is not a biometric identifier.

• It is not a face print. The request does not detect faces, does not segment people, and does not produce person-recognition data.
• It is not a fingerprint scan. The Touch ID sensor is never used and no skin ridge data is captured.
• It is not an iris scan, voice print, or any other biometric template.
• The vector is used only to compare your picked photo against other photos you have picked, so the app can show a similarity distance.

Data we do NOT collect

• No account, no email, no password — the app has no signup.
• No analytics, no telemetry, no event tracking.
• No advertising identifiers (no IDFA, no fingerprinting).
• No usage data sent off the device.
• No microphone, no camera. Pink Print never opens the camera or records audio; it only reads photos you explicitly pick.
• No location, no contacts, no calendar.
• No HealthKit, no Health data.

Photos permission

Pink Print requests Photos access (the NSPhotoLibraryUsageDescription permission) so that the system picker can show you photos to choose from. The permission is used only to read the photos you explicitly pick through Apple's PhotosPicker.

Pink Print does NOT scan your broader library, does NOT build an index of your photos, and does NOT read EXIF or location metadata beyond what is intrinsic to the frame you share with the app.

What stays on your device

• Your print entries (a 512-pixel thumbnail of the picked photo, the feature print as raw Data, the note you typed, the distance score to the previous entry, and the created-at timestamp). Stored in on-device SwiftData with the thumbnail and feature-print bytes held as external storage.
• The date the app was first launched (used to time the three-print free window). Stored in UserDefaults.
• Whether the paywall has been acknowledged.

The original photo continues to live in your Photos library. Pink Print keeps only the 512-pixel thumbnail plus the feature print vector. Pink Print never modifies, deletes, or writes back to the original.

All of the above lives on your device and never leaves it. Uninstalling the app deletes everything Pink Print has stored.

On-device similarity (Vision framework)

The feature print is generated by Apple's Vision framework through the public VNGenerateImageFeaturePrintRequest API. The request runs entirely on your iPhone's Neural Engine. The resulting vector (Apple's public documentation describes it at roughly 4,096 dimensions, encoded as raw bytes inside VNFeaturePrintObservation) is stored locally and used by the app's distance function to compare entries. No image data, embedding, or distance score is transmitted off the device.

In-app purchases

If you choose to subscribe (Monthly, Annual) or buy the Lifetime unlock, that transaction is handled by Apple's StoreKit. Apple processes the payment and shares only the receipt with the app so we can verify your entitlement. We never see your card number, billing address, or any personal information beyond Apple's opaque transaction identifier.

Subscription receipts are stored on-device by iOS and used to validate your entitlement when you re-open the app. They are not sent to any server we operate.

Family Sharing

Pink Print Pro purchases (Monthly, Annual, Lifetime) are Family-Shareable through Apple's standard Family Sharing mechanism. Apple handles eligibility checks; we do not see who is in your family group.

Children

Pink Print is rated 4+ in the App Store. Because the app collects no data at all, it complies with COPPA and similar children's-privacy regulations by design.

Your rights

Because Pink Print does not collect data, there is nothing for us to export, correct, or delete on your behalf. To revoke Photos permission, use iOS Settings → Privacy & Security → Photos. To remove all on-device state, delete the app.

For questions, write to dchalikovasss@gmail.com.

Changes

If we ever introduce a feature that involves any data leaving the device (for example, cloud sync or sharing), this page will be updated and the “Last updated” date at the top will change. For v1.0, no such feature exists.