# OBD Diagnostics vs Stud Finder Sensor

The clearest difference is ads: Stud Finder Sensor at none against OBD Diagnostics's shown. Stud Finder Sensor also leads on iOS requirement (17.0 vs 26.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. OBD Diagnostics sells 1 one-off in-app purchase and Stud Finder Sensor sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | OBD Diagnostics | Stud Finder Sensor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 23 MB | 10 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EJSmith](https://appshunter.io/developer/305393602) | [Mohammed Baydi](https://appshunter.io/developer/1896097312) |

## What reviewers say

### OBD Diagnostics

[App page](https://appshunter.io/ios/app/obd-diagnostics/id6759762253)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Stud Finder Sensor

[App page](https://appshunter.io/ios/app/stud-finder-sensor-wall-scan/id6768651995)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WallScan Pro · Weekly | $4.99 | per 7 days |
| WallScan Pro · Yearly | $29.99 | per year |


## Frequently asked questions

### Is OBD Diagnostics free?

OBD Diagnostics is free to download, with in-app purchases available.

### Is Stud Finder Sensor free?

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

### Do OBD Diagnostics or Stud Finder Sensor have ads?

OBD Diagnostics shows ads; Stud Finder Sensor does not.

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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.*