# ECCS EC3 1.8 — Steel Connections Calculator

> Steel Connections Calculator (iPhone/iPad app by CMM - Associacao Portuguesa de Construcao Metalica e Mista.)

- Source: https://appshunter.io/ios/app/eccs-ec3-18/id1022785288 (this page in markdown: same URL + `.md`)
- Developer: [CMM - Associacao Portuguesa de Construcao Metalica e Mista](https://appshunter.io/developer/473702147)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 7.0 · 74 MB
- Languages: American English
- Released: 2015-07-31
- Data updated: 2026-07-19
- User reviews in markdown: https://appshunter.io/ios/app/eccs-ec3-18/id1022785288/reviews.md

## What is ECCS EC3 1.8?

ECCS Steel Connections Calculator provides a database of mechanical fasteners and suppliers and it calculates the resistance of bolts according to EC3-1-8.


## Version history (last 5 releases)

### 1.0.6 — 2018-04-11

This app has been updated by Apple to display the Apple Watch app icon.

- Layout improvements.

### 1.0.5 — 2018-04-10

- Fix load issue (iOS 11.3)
- Support iPhone X
- Some minor improvements

### 1.0.4 — 2015-11-07

- Fix calculator issue on iPhone
- Some bug fixes.
- Update database synchronization

### 1.0.3 — 2015-10-13

- Some bug fixes

### 1.0.2 — 2015-09-25

Minor bug fixes

## Apps similar to ECCS EC3 1.8

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Drillstring Toolbox](https://appshunter.io/ios/app/drillstring-toolbox/id1068605189) | 3.3 (3) | Free | Utilities |
| [DuroMod](https://appshunter.io/ios/app/duromod/id1212080401) | 5.0 (1) | $4.99 | Utilities |
| [P&C Engineer Tools](https://appshunter.io/ios/app/p-and-c-engineer-tools/id919001170) | 5.0 (1) | Free | Utilities |

## More apps by CMM - Associacao Portuguesa de Construcao Metalica e Mista

- [EC3 Steel Member Calculator](https://appshunter.io/ios/app/ec3-steel-member-calculator/id473822768)
- [Buildings LCA](https://appshunter.io/ios/app/buildings-lca/id553002291)
- [ECCS EC3 1.4](https://appshunter.io/ios/app/eccs-ec3-14/id1170148525)
- [SBRI+](https://appshunter.io/ios/app/sbri-plus/id1202953767)
- [Equal Joints](https://appshunter.io/ios/app/equal-joints/id1406825195)

All apps by CMM - Associacao Portuguesa de Construcao Metalica e Mista: https://appshunter.io/developer/473702147

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-19.*