# Stud Finder vs Upright

The clearest difference is in-app purchases: Upright at none against Stud Finder's 3. Upright also leads on update cadence (weekly vs every 10 months) and iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Stud Finder sells 3 in-app purchases, starting at $4.99 per 7 days. Upright asks for nothing beyond the download.

Stud Finder ships an update every 10 months, Upright weekly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Stud Finder | Upright |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (16 ratings)](https://appshunter.io/ios/app/stud-finder-wall-detector/id6744090949/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 38 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [金红 李](https://appshunter.io/developer/1781133144) | [HeungYeol Kim](https://appshunter.io/developer/1878087341) |

## What reviewers say

### Stud Finder

[App page](https://appshunter.io/ios/app/stud-finder-wall-detector/id6744090949)

Turn your iPhone into a stud and metal detector. Accurately locate studs, pipes, wiring, and metal objects behind walls with real-time feedback and customizable settings. Perfect for DIY projects and home improvement.

**Highlights:** Professional-grade stud detection, Advanced metal detector functionality, Real-time visual, haptic, and audio feedback, Automatic magnetic field calibration, Customizable sensitivity settings, Offline functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $4.99 | per 7 days |
| Unlimited access | $24.99 | per year |
| Unlimited access | $49.99 | one-time |


### Upright

[App page](https://appshunter.io/ios/app/upright-posture-reminder/id6759855463)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stud Finder free?

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

### Is Upright free?

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

### Do Stud Finder or Upright have ads?

Neither Stud Finder nor Upright shows ads.

### Which is updated more often, Stud Finder or Upright?

Stud Finder ships an update every 10 months, and Upright weekly. Most recently, Stud Finder was updated on November 4, 2026 and Upright on October 31, 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.*