# SSC Spring Engineering vs Industrial Door Sensor Setup

The clearest difference is rating: Industrial Door Sensor Setup at 5.0 against SSC Spring Engineering's 4.6. Industrial Door Sensor Setup also leads on iOS requirement (9.0 vs 15.1). SSC Spring Engineering's advantage is ratings volume (26 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Industrial Door Sensor Setup holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: SSC Spring Engineering has 26 ratings behind it against 2, so its average is the more settled of the two.

SSC Spring Engineering ships an update every 6 months, Industrial Door Sensor Setup every 5 months. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SSC Spring Engineering | Industrial Door Sensor Setup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (26 ratings)](https://appshunter.io/ios/app/ssc-spring-engineering/id1438112209/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/industrial-door-sensor-setup/id1447859849/reviews)** |
| Number of ratings | **26** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 38 MB | 18 MB |
| Requires iOS | 15.1 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Service Spring Corporation](https://appshunter.io/developer/342694497) | [OPTEX CO., LTD.](https://appshunter.io/developer/1447859848) |

## What reviewers say

### SSC Spring Engineering

[App page](https://appshunter.io/ios/app/ssc-spring-engineering/id1438112209)

This utility app assists with spring engineering calculations, including conversions, new designs, and comparisons. It helps determine spring and drum specifications for various applications, such as rolling steel doors, and calculates lifting capacities.

**Highlights:** Spring conversion, New spring engineering, Drum specification comparison, IPPT spring calculation, Rolling steel door spring design, Approximate pull calculation, Maximum lift capacity determination

**Features:** macOS Compatibility

**In-app purchases:** none


### Industrial Door Sensor Setup

[App page](https://appshunter.io/ios/app/industrial-door-sensor-setup/id1447859849)

This utility app allows for the configuration and adjustment of settings for OPTEX industrial door sensors. It offers parameter changes, saving favorite settings, and multilingual descriptions for easy sensor setup.

**Highlights:** Configure industrial door sensor settings, Adjust microwave and AIR area parameters, Manage wireless tag settings, Set activation and supplemental safety outputs, Save favorite configurations, Multilingual support

**In-app purchases:** none


## Frequently asked questions

### Is SSC Spring Engineering free?

SSC Spring Engineering is free to download, with no in-app purchases.

### Is Industrial Door Sensor Setup free?

Industrial Door Sensor Setup is free to download, with no in-app purchases.

### Which has better reviews, SSC Spring Engineering or Industrial Door Sensor Setup?

Industrial Door Sensor Setup is rated higher. SSC Spring Engineering averages 4.6 out of 5 from 26 ratings, while Industrial Door Sensor Setup averages 5.0 from 2 ratings.

### Do SSC Spring Engineering or Industrial Door Sensor Setup have ads?

Neither SSC Spring Engineering nor Industrial Door Sensor Setup shows ads.

### Which is updated more often, SSC Spring Engineering or Industrial Door Sensor Setup?

SSC Spring Engineering ships an update every 6 months, and Industrial Door Sensor Setup every 5 months. Most recently, SSC Spring Engineering was updated on June 1, 2026 and Industrial Door Sensor Setup on September 17, 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.*