# SSC Spring Engineering vs Iron Lock

The clearest difference is rating: Iron Lock at 5.0 against SSC Spring Engineering's 4.6. SSC Spring Engineering's advantage is ratings volume (28 vs 1) and device support. On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

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

Iron Lock 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 28 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | SSC Spring Engineering | Iron Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (28 ratings)](https://appshunter.io/ios/app/ssc-spring-engineering/id1438112209/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iron-lock/id6786801479/reviews)** |
| Number of ratings | **28** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 months | — |
| Monetization | Free | Free |
| Size | 38 MB | 32 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Service Spring Corporation](https://appshunter.io/developer/342694497) | [SHLOMI REVIVO](https://appshunter.io/developer/6786801481) |

## 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


### Iron Lock

[App page](https://appshunter.io/ios/app/iron-lock/id6786801479)

Manage your smart safe remotely with this companion app. Lock, unlock, and grant access to trusted individuals using your phone. Track activity history and set auto-lock for added security.

**Highlights:** Remote lock and unlock, Fingerprint and keypad access, Manage trusted users, Activity history tracking, Auto-lock scheduling, Organize multiple safes

**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 Iron Lock free?

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

### Which has better reviews, SSC Spring Engineering or Iron Lock?

Iron Lock is rated higher. SSC Spring Engineering averages 4.6 out of 5 from 28 ratings, while Iron Lock averages 5.0 from 1 ratings.

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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.*