Greybox Tool vs ScanWallet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Greybox Tool
A utility for developers to understand ad network operations. It allows manual triggering of postbacks and viewing device identifiers for debugging and attribution tracing. Developers can also inspect SKAdNetwork requests and postback content.
- Manual postback triggering
- View device identifiers (IDFA, IDFV)
- Inspect SKAdNetwork requests
- Share debugging information
- Analyze ad network processes
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Greybox Tool is a simple tool application for developers to know how ad network works. For ad network developers, you can: - Advertise this simple app in the delivery system, and trigger postback manually to see what happens during the advertising process step by step. - View and share the device identifiers for further debugging and attribution tracing. For app developers, you can: - View and share device details such as IDFA and IDFV. - See SKAN requests and postback content in different ad networks without developing a new application. - View and share the device identifiers with ad network tech supports for further debugging.
ScanWallet
This app is a versatile scanner and generator for QR codes and barcodes, offering product recognition, price comparison, and academic problem-solving powered by GPT-4o. It also functions as a document scanner and OCR tool, with local data storage for enhanced privacy.
- Universal code recognition
- QR and barcode generator
- Product recognition and price comparison
- GPT-4o academic solver
- Document scanner and OCR
- Scan history management
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ScanWallet is your all-in-one smart tool for scanning, generating, recognizing, and managing QR codes and barcodes—supercharged with GPT-4o for academic solving and smart queries. Whether you're shopping, studying, or organizing your life, ScanWallet is designed to make every scan smarter and faster. 【Core Features】 • Universal Code Recognition Scan all major code formats including QR Code, Aztec, Data Matrix, Codabar, Code93, Code39, Code128, EAN-8, EAN-13, UPC-A, ISBN, PDF417 and more—automatically detected with lightning speed. • QR & Barcode Generator Easily create QR codes for text, URLs, contacts, social media (WhatsApp, Facebook, Instagram, TikTok, Twitter, Messenger, etc.), and generate barcodes (EAN, UPC, Code128, etc.) for business or sharing. • Product Recognition & Price Comparison Scan barcodes to get product name, price, origin, and real-time price comparisons across platforms—shop smarter and save money instantly. • GPT-4o Photo Solver Snap academic questions (math, physics, etc.) and get step-by-step solutions powered by GPT-4o—perfect for students, teachers, and lifelong learners. • Manual Input Manually enter incomplete barcode digits to retrieve product info without scanning. • Food Information Lookup Scan food packages to access nutritional details, ingredients, and health scores—helping you make healthier choices. • Document Scanner Digitally capture IDs, driver’s licenses, and other official documents for easy access and management. • OCR Text Extraction Extract text from printed documents, images, or receipts for quick storage or reuse—ideal for notes and business cards. • Scan History Management All scans are saved automatically for future access—track and organize effortlessly. • Flashlight Support Scan in dark environments with built-in flashlight support for optimal accuracy. • Privacy-First Design ScanWallet requires only camera access. All data is stored locally on your device—your privacy is never compromised. 【Why ScanWallet?】 • Versatile: Scan, generate, search, solve—all in one app • Fast & Accurate: Instant recognition of all major code types • Easy to Use: Clean UI for seamless scanning experience • GPT-Powered: Smart queries and academic solving made easy • Shopping Assistant: Barcode recognition with price comparison • Privacy-Focused: Minimal permissions, no data tracking • Multilingual Support: Built for global users Whether you need a scanning tool for study, shopping, work, or everyday life—ScanWallet is your go-to solution for managing digital and physical codes. Download ScanWallet today for a smarter way to scan, create, and understand information. Privacy Policy: https://scan.codejoys.net/privacy-policy.html Terms of Use: https://scan.codejoys.net/terms-of-use.htmlb
Screenshots
Verdict
The clearest difference is rating: ScanWallet at 4.5 against Greybox Tool's 2.5. ScanWallet also leads on ratings volume (155 vs 2). Greybox Tool's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ScanWallet sells 3 in-app purchases, starting at $6.99 per 7 days. Greybox Tool asks for nothing beyond the download.
ScanWallet holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: ScanWallet has 155 ratings behind it against 2, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Greybox Tool | ScanWallet |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) | 4.5 (155 ratings) — better |
| Positive reviews | — | 85.7% of reviews |
| Number of ratings | 2 | 155 — better |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 19 MB | 121 MB |
| Age rating | 17+ | 17+ |
| Developer | Yunfeng Wei | CODEJOY TECHNOLOGY LIMITED |
Customer experience
Greybox Tool
ScanWallet
In-app purchases
Greybox Tool
No in-app purchases
ScanWallet
- Weekly Premium3 Days trial$6.997 Days
- QR Code Reader3 Days trial$19.991 Month
- Lifetime Premium$49.99









