# Stud Finder App vs Mandarin Assistant HSK Widget

The clearest difference is price: Stud Finder App at Free against Mandarin Assistant HSK Widget's $1.99. Mandarin Assistant HSK Widget's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Stud Finder App is free to download; Mandarin Assistant HSK Widget costs $1.99 up front. Stud Finder App sells 2 in-app purchases, starting at $9.99 per year. Mandarin Assistant HSK Widget asks for nothing beyond the download.

Stud Finder App ships an update every 2 months, Mandarin Assistant HSK Widget every 5 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | Stud Finder App | Mandarin Assistant HSK Widget |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/stud-finder-app-wall-scanner/id6794059128/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 274 MB |
| Requires iOS | 17.6 | **17.5** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Ebenezer Oteng](https://appshunter.io/developer/1840002550) | [Vertex8](https://appshunter.io/developer/6801617409) |

## What reviewers say

### Stud Finder App

[App page](https://appshunter.io/ios/app/stud-finder-app-wall-scanner/id6794059128)

This tool uses your phone's magnetometer to detect metal objects within walls, such as nails, screws, pipes, and rebar. It offers different modes for finding studs or larger metal objects and can even overlay stud locations on your camera view in augmented reality.

**Highlights:** Magnetometer-based stud and metal detection, Multiple scan modes (Stud, Metal, Deep Scan Pro), Augmented reality wall view (Pro), Haptic and sound alerts, Live field strength readings, Calibration to your environment, Save and review past scans

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $9.99 | per year |
| Lifetime | $7.99 | one-time |


### Mandarin Assistant HSK Widget

[App page](https://appshunter.io/ios/app/mandarin-assistant-hsk-widget/id6801617407)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stud Finder App free?

Stud Finder App is free to download, with in-app purchases available.

### Is Mandarin Assistant HSK Widget free?

Mandarin Assistant HSK Widget costs $1.99, with no in-app purchases.

### Do Stud Finder App or Mandarin Assistant HSK Widget have ads?

Stud Finder App shows ads; Mandarin Assistant HSK Widget does not.

### Which is updated more often, Stud Finder App or Mandarin Assistant HSK Widget?

Stud Finder App ships an update every 2 months, and Mandarin Assistant HSK Widget every 5 days. Most recently, Stud Finder App was updated on November 6, 2026 and Mandarin Assistant HSK Widget on November 6, 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.*