# STEELMAN vs OCCDEC Occasion Detection

The clearest difference is update cadence: OCCDEC Occasion Detection at every 2 weeks against STEELMAN's every 22 months. STEELMAN's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

STEELMAN ships an update every 22 months, OCCDEC Occasion Detection every 2 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | STEELMAN | OCCDEC Occasion Detection |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 19 MB | 32 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JS Products, Inc.](https://appshunter.io/developer/673417159) | [LineSpotting AB](https://appshunter.io/developer/1326519237) |

## What reviewers say

### STEELMAN

[App page](https://appshunter.io/ios/app/steelman-smartear2/id673424308)

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

**Highlights:** Sound and vibration detection, Pinpoint defective parts, User-friendly interface, Analog/Digital display options, Selectable audio/vibration modes, 10-band frequency equalizer, Record and email test data

**Features:** macOS Compatibility

**In-app purchases:** none


### OCCDEC Occasion Detection

[App page](https://appshunter.io/ios/app/occdec-occasion-detection/id1495592504)

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

**In-app purchases:** none


## Frequently asked questions

### Is STEELMAN free?

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

### Is OCCDEC Occasion Detection free?

OCCDEC Occasion Detection is free to download, with no in-app purchases.

### Do STEELMAN or OCCDEC Occasion Detection have ads?

Neither STEELMAN nor OCCDEC Occasion Detection shows ads.

### Which is updated more often, STEELMAN or OCCDEC Occasion Detection?

STEELMAN ships an update every 22 months, and OCCDEC Occasion Detection every 2 weeks. Most recently, STEELMAN was updated on October 3, 2026 and OCCDEC Occasion Detection on October 2, 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.*