# Concrete Engineering vs Truss

The clearest difference is in-app purchases: Truss at none against Concrete Engineering's 1. Truss also leads on ads (none vs shown) and iOS requirement (10.0 vs 18.6). On price and device support there is nothing between them.

Both are free to download. Concrete Engineering sells 1 one-off in-app purchase. Truss asks for nothing beyond the download.

## The numbers

| Metric | Concrete Engineering | Truss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/concrete-engineering-lite/id1132557710/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 7 MB |
| Requires iOS | 18.6 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Tsutomu Murata](https://appshunter.io/developer/674892164) |

## What reviewers say

### Concrete Engineering

[App page](https://appshunter.io/ios/app/concrete-engineering-lite/id1132557710)

This app provides a comprehensive suite of calculators for concrete and civil engineering parameters. It features smart auto-fill options, a detailed calculation history with PDF export, and direct references to ACI codes. Unlock all 56 calculators with a one-time purchase.

**Highlights:** 56 concrete and civil engineering calculators, Metric and Imperial unit support, Detailed formulas for all calculations, Smart auto-fill pickers, Calculation history with PDF export, ACI 318-19 code references

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Concrete Engineering Calc. | $3.99 | one-time |


### Truss

[App page](https://appshunter.io/ios/app/truss-i/id1538198968)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Concrete Engineering free?

Concrete Engineering is free to download, with in-app purchases available.

### Is Truss free?

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

### Do Concrete Engineering or Truss have ads?

Concrete Engineering shows ads; Truss does not.

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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.*