Unboxed vs CarDiag
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unboxed
This utility app provides instant QR code scanning with a clean, distraction-free interface. It automatically saves your scan history, allowing you to revisit links, text, and other code types later. Codes are processed on your device for enhanced privacy.
- Instant scanning
- Automatic scan history
- Clean interface
- Recognizes various QR code types
- On-device processing
- Preview before action
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Unboxed is a fast, modern QR code scanner designed to feel simple and effortless. Just open the app and scan. No buttons. No friction. Every code you scan is saved automatically, so you can come back to it later—whether it’s a login link, a menu, or something you weren’t ready to open yet. Why Unboxed? • Instant scanning – open and go • Automatic scan history • Clean, distraction-free interface • Built with modern technologies • No unnecessary steps or clutter Unboxed is designed to feel simple, fast, and reliable—exactly how a scanner should be. Smart Scanning Unboxed recognises a wide range of QR code types including links, text, email addresses, phone numbers, and more. You stay in control—preview what’s inside before taking action. Privacy First Codes are processed on your device. Your scans stay yours.
CarDiag
Diagnose vehicle issues, turn off the check engine light, and manage maintenance digitally. This app provides insights into car problems, repair tips, and cost estimations, empowering users to handle car diagnostics independently.
- Automatic OBD2 diagnostics
- Manual fault identification
- Reset check engine light
- Digital maintenance book
- DIY repair tutorials
- Repair cost estimation
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CarDiag : A trusted mechanic in your pocket Diagnose your car, find breakdowns and turn off the check engine light ! CarDiag : Your Easy Car Diagnostic - OBD2 Thanks to its connected device and its free and intuitive mobile application, CarDiag allows motorists to diagnose their vehicle easily, independently and at a lower cost (breakdowns, wear of components and pollution). The "CarDiag" application supports motorists from "A" to "Z" in the diagnostic, maintenance and repair of their vehicle independently and cheaply : since the doubt of a problem, the identification of the fault, a diagnostic in simple and easy-to-understand terms and a pollution score, Do-it-yourself auto repairs, tips to buy parts as well as a cost estimation at the nearest mechanic. It also provide a digital maintenance book. Features : - Automatic Diagnostic : Equipped with an OBD2 bluetooth device (easy to get and available for less than 10$), CarDiag provides a complete list of your car problems in simple and easy-to-understand terms. - Manual Diagnostic : Cardiag provides assistance for a direct diagnostic by the user (visual defects, noise, smells, etc.) - Reset the Check Engine Light (MIL) : The check engine light comes on to indicate a malfunction in the engine or the pollution control system. CarDiag allows you to reset this malfunction indicator lamp. - Maintenance Book : digitize and store all repairs made by the user or a professional with attached invoices. - Tutorials for Do-it-yourself Auto Repair, and tips to buy Car Parts - Car repair cost estimation at the nearest mechanic - Routine vehicle maintenance : Perform a regular vehicle check-up, pre-vehicle inspection or before buying a car We have all done the same observation when we take our vehicle to a garage : the mechanic diagnoses possible breakdowns using a dedicated diagnostic tool. This simple diagnostic is billed around 50 dollars, in addition of potential repairs which it is difficult to evaluate the real cost and the necessity. However, sometimes a simple reset of the on-board computer can solve many "electronic problems", a feature available in the "CarDiag" application. Prerequisites: to use the Cardiag application, you should : * Have an OBD-II compatible car : OBD-II is compatible with all US vehicle models since 1996, European since 2001 (diesel since 2003), Japanize since 2006. * Have a CarDiag device (OBD2) : easy to get and available on our website/Amazon... Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: CarDiag at every 5 weeks against Unboxed's every 71 months. CarDiag also leads on device support and iOS requirement (15.0 vs 26.0). On price, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Unboxed ships an update every 71 months, CarDiag every 5 weeks. The most recent releases landed on October 8, 2026 and October 21, 2026 respectively.
| Parameter | Unboxed | CarDiag |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 71 months | Every 5 weeks — better |
| Ads | — | Yes |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | — | iPhone, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Reid | HI GROUP |
Customer experience
Unboxed
CarDiag
In-app purchases
Unboxed
No in-app purchases
CarDiag
No in-app purchases









