# Interlock Warm Up vs Stud Finder゜

The clearest difference is rating: Stud Finder゜ at 4.5 against Interlock Warm Up's 1.5. Stud Finder゜ also leads on review sentiment (35% vs 0%) and ratings volume (4.9K vs 8). Interlock Warm Up's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Stud Finder゜ sells 1 one-off in-app purchase. Interlock Warm Up asks for nothing beyond the download.

Stud Finder゜ holds the better App Store score, 4.5 against 1.5. That said, the two scores are not equally well evidenced: Stud Finder゜ has 4.9K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 0% of Interlock Warm Up's written reviews are positive against 35% of Stud Finder゜'s.

Interlock Warm Up ships an update every 10 months, Stud Finder゜ every 4 months. The most recent releases landed on June 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Interlock Warm Up | Stud Finder゜ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (8 ratings)](https://appshunter.io/ios/app/interlock-warm-up/id1457709536/reviews) | **[4.5 (4.9K ratings)](https://appshunter.io/ios/app/stud-finder/id1524134326/reviews)** |
| Number of ratings | 8 | **4.9K** |
| Positive reviews | 0.0% of reviews | **35.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 35 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Low Cost Interlock](https://appshunter.io/developer/1262604721) | [Hanja Devi](https://appshunter.io/developer/1453140968) |

## What reviewers say

### Interlock Warm Up

[App page](https://appshunter.io/ios/app/interlock-warm-up/id1457709536)

This app allows you to remotely start the interlock warm-up process for your vehicle. Avoid waiting in your car by initiating the warm-up sequence from your mobile device.

**Highlights:** Remote start warm-up process, Eliminate wait time in vehicle, Control interlock system, Mobile device integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Stud Finder゜

[App page](https://appshunter.io/ios/app/stud-finder/id1524134326)

This application utilizes your iPhone's magnetometer to detect metal objects, helping you locate hidden studs behind walls. It's designed to quickly find wood studs concealed by drywall, plasterboard, or stucco. Performance may vary based on wall construction and phone accessories.

**Highlights:** Detects studs using magnetometer, Locates metal objects, Works through drywall, plasterboard, stucco, Quick stud detection, Removable case recommended for best performance

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |

**What reviewers like**

- 🚀 Works well
- 👍 Easy to use
- 💡 Innovative app concept
- 🚀 Accurate stud detection

**What reviewers complain about**

- 🐛 Inconsistent performance
- 🐛 Inaccurate stud detection
- 🔋 Drains phone battery
- 💤 Requires high sensitivity setting

**Reported bugs**

- Constant false positive stud detection
- App crashes or freezes
- Sensitivity settings not working as expected

**Requested features**

- Improved stud detection accuracy
- Better calibration options
- More intuitive user interface
- Compatibility with older devices


## Frequently asked questions

### Is Interlock Warm Up free?

Interlock Warm Up is free to download, with no in-app purchases.

### Is Stud Finder゜ free?

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

### Which has better reviews, Interlock Warm Up or Stud Finder゜?

Stud Finder゜ is rated higher. Interlock Warm Up averages 1.5 out of 5 from 8 ratings, while Stud Finder゜ averages 4.5 from 4.9K ratings.

### Do Interlock Warm Up or Stud Finder゜ have ads?

Stud Finder゜ shows ads; Interlock Warm Up does not.

### Which is updated more often, Interlock Warm Up or Stud Finder゜?

Interlock Warm Up ships an update every 10 months, and Stud Finder゜ every 4 months. Most recently, Interlock Warm Up was updated on June 3, 2026 and Stud Finder゜ on September 29, 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.*