Shrunk

Privacy Policy

Last updated: May 13, 2026

Shrunk is built so that we never need to see anything about you. Your watchlist, scan history, and personalization choices live on your device. This policy spells out exactly what data the app touches and where it goes.

What we do not collect

  • We do not use analytics SDKs of any kind.
  • We do not track you across apps or websites.
  • We do not require an account, email address, or login.
  • We do not sell, share, or transmit any personal data to third parties.
  • We do not display advertising.
  • We do not use the Apple Advertising Identifier (IDFA).
  • We do not run any servers that record what you scan.

Data stored on your device

  • Watchlist.Products you choose to monitor are saved locally with Apple's SwiftData framework. This data never leaves your device.
  • Alert history. When a watched product shrinks, the alert is recorded locally so it appears in the Alerts tab and the Savings Dashboard. Local-only.
  • Onboarding profile. Your answers to the onboarding quiz (household size, shop frequency, monthly grocery spend, chosen categories) are stored in UserDefaults on your device and used to compute your personalized savings forecast. Local-only.
  • Notification preferences. Quiet hours, threshold, and pause state are stored in UserDefaults. Local-only.
  • Purchase entitlement.Whether you have purchased Shrunk Pro is verified through Apple's StoreKit framework on your device. We do not see your payment details.

Camera

The barcode scanner uses your camera only while the scanning view is open. Frames are processed in real time by Apple's on-device vision framework to extract the barcode digits. We do not record video, store frames, or transmit any image data.

Network requests

Shrunk makes a small number of outbound network requests, all of which send a barcode or category slug — never a personal identifier.

  • Open Food Facts. When you scan a product or run a watchlist refresh, we look up the product (and one historical revision) on world.openfoodfacts.org — a nonprofit, community-maintained food product database.
  • UPCitemDB (fallback).If Open Food Facts doesn't have the product, we try upcitemdb.com as a fallback. Same shape — barcode in, product metadata out.
  • Trending feed.The Browse tab loads a public JSON file with verified shrinkflation cases, served from jsDelivr's CDN. No personal data is sent.
  • Product images.Loaded from Open Food Facts' image CDN. Standard HTTP requests, no tracking.

Notifications

If you grant notification permission, Apple's push system delivers locally scheduled alerts when a watched product shrinks. No data passes through any third-party push service — these are local notifications triggered by background sweeps that ran on your own device.

Purchases

Shrunk Pro is a one-time, non-consumable in-app purchase processed by Apple through the App Store. We never see your payment details. Refunds are handled by Apple in accordance with their policy.

Children's privacy

Shrunk is not directed at children under 13 and does not knowingly collect information from anyone under 13.

Changes

If this policy materially changes, we will update the “Last updated” date above. Since we collect nothing, material changes are unlikely.

Contact

Shrunk is a product of Stack Curious, LLC · Florida, USA