# DupeDetective Receipt Scanner — Receipt Scanner & Dupe Finder > AI-powered receipt scanner to detect and prevent duplicate charges. (iPhone/iPad app by Marcus Chaffee.) - Source: https://appshunter.io/ios/app/dupedetective-receipt-scanner/id6773174333 (this page in markdown: same URL + `.md`) - Developer: [Marcus Chaffee](https://appshunter.io/developer/6773174335) - Category: Finance, Shopping - Price: Free with in-app purchases (on sale, was $2.99) - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 18.6 · 2 MB - Languages: American English - Released: 2026-06-02 - Data updated: 2026-08-20 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/dupedetective-receipt-scanner/id6773174333/reviews.md ## What is DupeDetective Receipt Scanner? Dupe Detective: Stop Paying for Double Scans Did the cashier accidentally scan an item twice? Did that “Buy One, Get One” deal actually ring up correctly? Grocery stores are busy, and checkout mistakes happen more often than you think. Dupe Detective is your personal receipt auditor and budget protector. Designed to catch costly double-scans and billing errors, our smart receipt scanner makes it incredibly fast and easy to verify your purchases before you even leave the parking lot. Simply snap a photo of your paper receipt or import a digital one. Our advanced, on-device AI instantly reads the line items and flags any duplicate charges so you can head straight to customer service and get your refund. Works with Costco, Kroger, Fry’s, Sam’s Club, Walmart and most major grocery stores. No subscription required. Everything is processed privately on your iPhone. Key Features Instant Duplicate Detection Quickly identifies identical or highly similar items on your receipt. Stop guessing and start verifying. 100% Private, On-Device Scanning Your financial data belongs to you. Dupe Detective uses advanced on-device OCR to read your receipts with no cloud servers, no data harvesting, and no internet connection required. Smart Grocery List More than just a scanner, Dupe Detective includes a built-in grocery list manager. Plan your shopping trips ahead of time, stay on budget, and keep everything organized in one place. Receipt History & Organization Keep a digital archive of your past shopping trips. Easily save and review scanned receipts to track spending habits, monitor price changes over time, or keep records for returns and warranties. Fast & Easy to Use Professional interface designed for quick scans. Get results in seconds so you can get on with your day. Download Dupe Detective today and start catching the charges you shouldn’t be paying for. Seamless Light & Dark Mode A beautifully designed interface that automatically adapts to your system preferences, or can be toggled manually in the app settings for comfortable viewing at any time of day. DUPEDETECTIVE PRO Upgrade to our Pro tier to unlock unlimited receipt scanning and continuous protection against checkout errors for less than the cost of a single double-scanned item! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Instant duplicate detection - On-device AI scanning - Smart grocery list manager - Receipt history and organization - Fast and easy to use - Light and dark mode support ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | DupeDetectivePro | $4.99 | per year | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/dupedetective-receipt-scanner/id6773174333/reviews.md ### 5/5 — Take the hassle out of your receipt minding *2026-06-03* The longer the receipt the more I love this app! ## Frequently asked questions about DupeDetective Receipt Scanner ### What is DupeDetective? DupeDetective is a receipt scanner designed to help you identify and prevent costly double-scans and billing errors at grocery stores. It uses on-device AI to analyze your receipts and flag any duplicate items. ### How does DupeDetective protect my privacy? DupeDetective prioritizes your privacy by processing all receipt data on your device. It does not use cloud servers, ensuring no data harvesting or internet connection is required for scanning. ### Which stores does DupeDetective work with? DupeDetective is designed to work with most major grocery stores, including Costco, Kroger, Fry’s, Sam’s Club, and Walmart. ### Can I use DupeDetective offline? Yes, DupeDetective's on-device AI allows you to scan and analyze your receipts without an internet connection, making it convenient for use anywhere. ### Does DupeDetective have ads? No, DupeDetective does not contain advertisements. The app is free to use and offers an optional Pro tier for unlimited scanning. ### What are the benefits of DupeDetective Pro? Upgrading to DupeDetective Pro unlocks unlimited receipt scanning, providing continuous protection against checkout errors. This feature is available for a one-time cost, often less than the price of a single double-scanned item. ### How often is DupeDetective updated? The app was last updated on June 11, 2026, indicating ongoing development and support. The current version is 1.0.2. ### What devices support DupeDetective? DupeDetective is available for iPhone and iPad devices, offering a seamless experience with both light and dark mode support. ## Version history (last 4 releases) ### 1.1.1 — 2026-08-15 Updated App Store screenshots to better show how Dupe Detective flags duplicate charges on a real receipt. No changes to app functionality in this release. ### 1.1.0 — 2026-08-09 • Your grocery list, receipts, and folders now sync over iCloud across your devices • Sharper duplicate detection, including price-aware grouping and better handling of messy receipt text • Multi-page receipt scanning, with faster on-device text recognition • Rename and delete your receipt folders • Try it free: 3 scans before any subscription, then a 7-day free trial • Fixes for a sync issue affecting long-time users, plus general reliability work ### 1.0.2 — 2026-06-11 • Dupe Detective Pro is Here! Unlock unlimited receipt scanning with our new yearly plan to stop double-paying and catch every checkout mistake. • New Appearance Settings: We've added a sleek toggle in the Settings tab so you can easily switch between Light, Dark, and System themes. • Smoother Shopping List: Upgraded the pending items ticker for a perfectly smooth, infinite-scrolling experience. • Smoother Upgrades: Squashed a bug to ensure that upgrading to Pro is instant and seamless. • Under-the-hood performance improvements and subscription syncing upgrades to keep your app running perfectly. ### 1.0 — 2026-06-02 No release notes. ## Related topics [grocery store scanner](https://appshunter.io/ios/topics/grocery-store-scanner) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*