# Stud Magnetic Detector PRO vs Qualoo

The clearest difference is price: Qualoo at Free against Stud Magnetic Detector PRO's $2.99. Qualoo also leads on update cadence (every 7 months vs every 30 months). Stud Magnetic Detector PRO's advantage is rating (2.7 vs 1.0) and ratings volume (7 vs 1). On ads, in-app purchases and device support there is nothing between them.

Qualoo is free to download; Stud Magnetic Detector PRO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stud Magnetic Detector PRO holds the better App Store score, 2.7 against 1.0. That said, the two scores are not equally well evidenced: Stud Magnetic Detector PRO has 7 ratings behind it against 1, so its average is the more settled of the two.

Stud Magnetic Detector PRO ships an update every 30 months, Qualoo every 7 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Stud Magnetic Detector PRO | Qualoo |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[2.7 (7 ratings)](https://appshunter.io/ios/app/stud-magnetic-detector-pro/id1412530369/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/qualoo-internet-quality/id6744975488/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 7 months** |
| Monetization | Paid | **Free** |
| Size | 122 MB | 167 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Jorge Gregorio Martin Bello](https://appshunter.io/developer/567988393) | [Qualoo (SINGAPORE) PTE. LTD](https://appshunter.io/developer/1810257962) |

## What reviewers say

### Stud Magnetic Detector PRO

[App page](https://appshunter.io/ios/app/stud-magnetic-detector-pro/id1412530369)

Detect hidden metal studs, nails, and screws within walls using your device's magnetometer. The app provides active detection beeps and allows you to record the time of detection for precise location marking.

**Highlights:** Detects metal studs, nails, and screws, Uses device magnetometer sensor, Active detection beep, Measures magnetic field in uT, Records detection time

**Features:** macOS Compatibility

**In-app purchases:** none


### Qualoo

[App page](https://appshunter.io/ios/app/qualoo-internet-quality/id6744975488)

Measure your internet connection quality across Wi-Fi and mobile networks. This app helps identify connectivity issues and contributes to a global map for improving internet coverage. Earn in-app rewards for your participation.

**Highlights:** Measure latency, jitter, packet loss, and speed, Detect Wi-Fi and mobile coverage issues, View global connectivity map, Compete with friends on leaderboards, Advanced diagnostic tools (Ping, DNS, Traceroute), Earn in-app rewards

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stud Magnetic Detector PRO free?

Stud Magnetic Detector PRO costs $2.99, with no in-app purchases.

### Is Qualoo free?

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

### Which has better reviews, Stud Magnetic Detector PRO or Qualoo?

Stud Magnetic Detector PRO is rated higher. Stud Magnetic Detector PRO averages 2.7 out of 5 from 7 ratings, while Qualoo averages 1.0 from 1 ratings.

### Do Stud Magnetic Detector PRO or Qualoo have ads?

Neither Stud Magnetic Detector PRO nor Qualoo shows ads.

### Which is updated more often, Stud Magnetic Detector PRO or Qualoo?

Stud Magnetic Detector PRO ships an update every 30 months, and Qualoo every 7 months. Most recently, Stud Magnetic Detector PRO was updated on October 21, 2026 and Qualoo on October 20, 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.*