# FastTrack QR vs Smart Device Detector & Signal

FastTrack QR and Smart Device Detector & Signal both sit at 4.5 stars, but that hides the real split: 93% of FastTrack QR's written reviews are positive against 46% of Smart Device Detector & Signal's. FastTrack QR also leads on in-app purchases (none vs 2) and iOS requirement (12.0 vs 16.0). Smart Device Detector & Signal's advantage is update cadence (fortnightly vs every 6 weeks) and ratings volume (400 vs 42). On price, rating, ads and device support there is nothing between them.

Both are free to download. Smart Device Detector & Signal sells 2 in-app purchases, starting at $11.99 per 7 days. FastTrack QR asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for FastTrack QR against 4.3 for Smart Device Detector & Signal. That said, the two scores are not equally well evidenced: Smart Device Detector & Signal has 400 ratings behind it against 42, so its average is the more settled of the two. Written reviews are what separate them: 93% of FastTrack QR's written reviews are positive against 46% of Smart Device Detector & Signal's.

FastTrack QR ships an update every 6 weeks, Smart Device Detector & Signal fortnightly. Both last shipped on November 5, 2026.

## The numbers

| Metric | FastTrack QR | Smart Device Detector & Signal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (42 ratings)](https://appshunter.io/ios/app/fasttrack-qr-scan-and-create-code/id6529534705/reviews)** | [4.3 (400 ratings)](https://appshunter.io/ios/app/smart-device-detector-and-signal/id6756376176/reviews) |
| Number of ratings | 42 | **400** |
| Positive reviews | **92.9% of reviews** | 46.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 44 MB | 102 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Xian Dayanshan Electronic Tech Limited](https://appshunter.io/developer/1627181795) | [REATIVE IMPACT](https://appshunter.io/developer/1860336330) |

## What reviewers say

### FastTrack QR

[App page](https://appshunter.io/ios/app/fasttrack-qr-scan-and-create-code/id6529534705)

This app acts as a pocket code wizard, offering lightning-fast QR and barcode scanning. It also allows you to create your own QR codes using preset templates and color combinations, exporting them in high-definition PNG format.

**Highlights:** QR/barcode scanning, Custom QR code creation, Preset templates and color options, High-definition PNG export, Scan history, Sharing of results

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Smart Device Detector & Signal

[App page](https://appshunter.io/ios/app/smart-device-detector-and-signal/id6756376176)

Analyze your surroundings with tools that focus on connected devices, local signals, and network information. Understand Wi-Fi and Bluetooth activity, check magnetic fields, and measure network speed in a clear interface.

**Highlights:** Wi-Fi device overview, Bluetooth signal strength, Magnetic field meter, Network speed test, Email address lookup

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scanory Pro 1 week | $11.99 | per 7 days |
| Scanory Pro 1 week | $13.99 | per 7 days |


## Frequently asked questions

### Is FastTrack QR free?

FastTrack QR is free to download, with no in-app purchases.

### Is Smart Device Detector & Signal free?

Smart Device Detector & Signal is free to download, with in-app purchases available.

### Which has better reviews, FastTrack QR or Smart Device Detector & Signal?

FastTrack QR is rated higher. FastTrack QR averages 4.5 out of 5 from 42 ratings, while Smart Device Detector & Signal averages 4.3 from 400 ratings.

### Do FastTrack QR or Smart Device Detector & Signal have ads?

Neither FastTrack QR nor Smart Device Detector & Signal shows ads.

### Which is updated more often, FastTrack QR or Smart Device Detector & Signal?

FastTrack QR ships an update every 6 weeks, and Smart Device Detector & Signal fortnightly. Most recently, FastTrack QR was updated on November 5, 2026 and Smart Device Detector & Signal on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*