DupeDetective Receipt Scanner
Marcus Chaffee Finance iPhoneiPadiPod touchMac
DupeDetective Receipt Scanner is a free Finance app for iPhone and iPad by Marcus Chaffee. Rated 5.0/5 from 2 ratings. Requires iOS 18.6.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 2 MB
- Age 4+
- Updated
- Aug 15
- 2026 · v1.1.1
Screenshots
About 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/
What’s new
Version 1.1.1 · Updated August 15, 2026
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.
App privacy
The developer, Marcus Chaffee, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to DupeDetective Receipt Scanner
Looking for apps like DupeDetective Receipt Scanner? Here are 6 similar apps on the App Store. The highest rated is Expense & Receipt Saver (5.0/5), and 4 of the 6 are free to download.
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MASO Receipt Vault
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Expense & Receipt Saver
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Receipt AI - Expense Scanner
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Spendy: The Expense Tracker
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AssetMinder Finance Tracker
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| DupeDetective Receipt Scanner | 5.0 / 5 (2 ratings) | Free | August 15, 2026 | |
| MASO Receipt Vault | – | Free | May 12, 2026 | Compare |
| Expense & Receipt Saver | 5.0 / 5 (2) | Free | Jul 8, 2026 | Compare |
| Receipt AI - Expense Scanner | 5.0 / 5 (1) | Free | Apr 7, 2026 | Compare |
| Spendy: The Expense Tracker | – | 0.99 USD | Apr 23, 2026 | Compare |
| AssetMinder Finance Tracker | – | 2.99 USD | Jul 5, 2026 | Compare |
| Value Investing Tools | – | Free | Sep 28, 2026 | Compare |