# Extremtag vs Stud Finder

The clearest difference is iOS requirement: Extremtag at 15 against Stud Finder's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Extremtag ships an update monthly, Stud Finder every 3 weeks. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Extremtag | Stud Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (10 ratings)](https://appshunter.io/ios/app/stud-finder-wall-scanner/id6764902548/reviews)** |
| Number of ratings | — | **10** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 169 MB | 2 MB |
| Requires iOS | **15** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [J2 Technology Limited](https://appshunter.io/developer/1865075570) | [Monolayer Studio](https://appshunter.io/developer/1864336935) |

## What reviewers say

### Extremtag

[App page](https://appshunter.io/ios/app/extremtag/id6757174627)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stud Finder

[App page](https://appshunter.io/ios/app/stud-finder-wall-scanner/id6764902548)

This utility app uses your iPhone's magnetometer to detect metal fasteners behind drywall, helping you locate stud lines. Simply sweep your phone across the wall to find screws and nails, then mark the spikes to identify the stud's position for mounting.

**Highlights:** Detects metal fasteners behind drywall, Locates stud lines, Uses iPhone's magnetometer, Simple sweep-and-detect method, No ads or interruptions

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

**In-app purchases:** none


## Frequently asked questions

### Is Extremtag free?

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

### Is Stud Finder free?

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

### Do Extremtag or Stud Finder have ads?

Neither Extremtag nor Stud Finder shows ads.

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

Extremtag ships an update monthly, and Stud Finder every 3 weeks. Most recently, Extremtag was updated on October 17, 2026 and Stud Finder on October 24, 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.*