# STEELMAN vs Decibel Meter dB Spectrum

The clearest difference is in-app purchases: STEELMAN at none against Decibel Meter dB Spectrum's 4. STEELMAN also leads on iOS requirement (9.0 vs 16.0). Decibel Meter dB Spectrum's advantage is update cadence (every 6 months vs every 22 months). On price, ads and device support there is nothing between them.

Both are free to download. Decibel Meter dB Spectrum sells 4 in-app purchases, starting at $2.99 per 7 days. STEELMAN asks for nothing beyond the download.

STEELMAN ships an update every 22 months, Decibel Meter dB Spectrum every 6 months. The most recent releases landed on November 1, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | STEELMAN | Decibel Meter dB Spectrum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/steelman-smartear1/id673421095/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 19 MB | 7 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [JS Products, Inc.](https://appshunter.io/developer/673417159) | [Ahmet Giray Ucar](https://appshunter.io/developer/1583246836) |

## What reviewers say

### STEELMAN

[App page](https://appshunter.io/ios/app/steelman-smartear1/id673421095)

This app transforms your iOS device into a sound and vibration detection tool. It helps pinpoint defective or worn parts in vehicles and machinery by analyzing rattles, squeaks, and grinding sounds. Requires additional hardware for full functionality.

**Highlights:** Sound and vibration detection, Pinpoints defective parts, User-friendly interface, Analog and digital readings, Selectable audio/vibration input, 10-band frequency equalizer

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibel Meter dB Spectrum

[App page](https://appshunter.io/ios/app/decibel-meter-db-spectrum/id6747271171)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Desibel Weekly Discounted | $2.99 | per 7 days |
| Desibel Meter Pro Weekly | $3.99 | per 7 days |
| Desibe Meter Pro Monthly | $9.99 | per month |
| Desibel Meter Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is STEELMAN free?

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

### Is Decibel Meter dB Spectrum free?

Decibel Meter dB Spectrum is free to download, with in-app purchases available.

### Do STEELMAN or Decibel Meter dB Spectrum have ads?

Neither STEELMAN nor Decibel Meter dB Spectrum shows ads.

### Which is updated more often, STEELMAN or Decibel Meter dB Spectrum?

STEELMAN ships an update every 22 months, and Decibel Meter dB Spectrum every 6 months. Most recently, STEELMAN was updated on November 1, 2026 and Decibel Meter dB Spectrum on October 20, 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.*