# Studfinder Tool Metal Detect vs InVue OnePASS

The clearest difference is in-app purchases: InVue OnePASS at none against Studfinder Tool Metal Detect's 3. InVue OnePASS also leads on update cadence (weekly vs every 6 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Studfinder Tool Metal Detect sells 3 in-app purchases, starting at $0.99 per 7 days. InVue OnePASS asks for nothing beyond the download.

Studfinder Tool Metal Detect ships an update every 6 months, InVue OnePASS weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Studfinder Tool Metal Detect | InVue OnePASS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/studfinder-tool-metal-detect/id6742410410/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 38 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Farouk Nasser](https://appshunter.io/developer/1478256466) | [InVue Security Products](https://appshunter.io/developer/450492727) |

## What reviewers say

### Studfinder Tool Metal Detect

[App page](https://appshunter.io/ios/app/studfinder-tool-metal-detect/id6742410410)

This tool transforms your iPhone into a wall scanning assistant. It helps you locate hidden studs, pipes, wires, and metal objects behind walls, ceilings, and floors for confident drilling and mounting.

**Highlights:** Detect wooden wall studs, Find metal pipes and framing, Locate steel rebar, Identify live AC electrical wires, Multiple scanning modes, Augmented Reality guidance, Built-in level and ruler

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $0.99 | per 7 days |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $9.99 | per year |


### InVue OnePASS

[App page](https://appshunter.io/ios/app/invue-onepass/id6746747754)

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

**In-app purchases:** none


## Frequently asked questions

### Is Studfinder Tool Metal Detect free?

Studfinder Tool Metal Detect is free to download, with in-app purchases available.

### Is InVue OnePASS free?

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

### Do Studfinder Tool Metal Detect or InVue OnePASS have ads?

Neither Studfinder Tool Metal Detect nor InVue OnePASS shows ads.

### Which is updated more often, Studfinder Tool Metal Detect or InVue OnePASS?

Studfinder Tool Metal Detect ships an update every 6 months, and InVue OnePASS weekly. Most recently, Studfinder Tool Metal Detect was updated on October 24, 2026 and InVue OnePASS on October 25, 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.*