# Machine Defender vs S1 Collector

Machine Defender and S1 Collector are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Machine Defender ships an update every 8 months, S1 Collector every 6 months. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Machine Defender | S1 Collector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/machine-defender/id1496754747/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 274 MB | 72 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ACOEM Group](https://appshunter.io/developer/1495816959) | [Baker Hughes Company](https://appshunter.io/developer/393570118) |

## What reviewers say

### Machine Defender

[App page](https://appshunter.io/ios/app/machine-defender/id1496754747)

This app, used with a wireless vibration sensor, collects and analyzes vibration data from industrial rotating machinery. It automatically detects faults in components like motors and pumps, providing diagnostic reports and maintenance recommendations.

**Highlights:** Wireless vibration data collection, Automatic fault detection with AI, Machine health assessment, Maintenance recommendations, Report storage and sharing, Cloud platform connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### S1 Collector

[App page](https://appshunter.io/ios/app/s1-collector/id1644665945)

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

**In-app purchases:** none


## Frequently asked questions

### Is Machine Defender free?

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

### Is S1 Collector free?

S1 Collector is free to download, with no in-app purchases.

### Do Machine Defender or S1 Collector have ads?

Neither Machine Defender nor S1 Collector shows ads.

### Which is updated more often, Machine Defender or S1 Collector?

Machine Defender ships an update every 8 months, and S1 Collector every 6 months. Most recently, Machine Defender was updated on October 17, 2026 and S1 Collector on October 25, 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.*