# STEELMAN vs Pio Picker

The clearest difference is price: STEELMAN at Free against Pio Picker's $3.99. STEELMAN also leads on in-app purchases (none vs 3) and iOS requirement (9.0 vs 15.0). On update cadence, ads and device support there is nothing between them.

STEELMAN is free to download; Pio Picker costs $3.99 up front. Pio Picker sells 3 in-app purchases, starting at $0.99 per month. STEELMAN asks for nothing beyond the download.

STEELMAN ships an update every 22 months, Pio Picker every 23 months. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | STEELMAN | Pio Picker |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| 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 23 months |
| Monetization | Free | — |
| Size | 19 MB | 26 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [JS Products, Inc.](https://appshunter.io/developer/673417159) | [文飞 黄](https://appshunter.io/developer/1626606437) |

## 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


### Pio Picker

[App page](https://appshunter.io/ios/app/pio-picker/id6450163058)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $0.99 | per month |
| All Access | $3.99 | per year |
| All Access | $6.99 | one-time |


## Frequently asked questions

### Is STEELMAN free?

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

### Is Pio Picker free?

Pio Picker costs $3.99, and also offers in-app purchases.

### Do STEELMAN or Pio Picker have ads?

Neither STEELMAN nor Pio Picker shows ads.

### Which is updated more often, STEELMAN or Pio Picker?

STEELMAN ships an update every 22 months, and Pio Picker every 23 months. Most recently, STEELMAN was updated on October 12, 2026 and Pio Picker on October 18, 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.*