# Timber Engineering Calculator vs CSiSteel

The clearest difference is review sentiment: CSiSteel at 100% against Timber Engineering Calculator's 0%. CSiSteel also leads on price (Free vs $3.99) and rating (5.0 vs 3.9). On ratings volume, ads, in-app purchases and device support there is nothing between them.

CSiSteel is free to download; Timber Engineering Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CSiSteel holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 7 and 7 respectively. Written reviews point the same way: 0% of Timber Engineering Calculator's written reviews are positive against 100% of CSiSteel's.

Timber Engineering Calculator ships an update every 39 months, CSiSteel every 3 weeks. The most recent releases landed on August 28, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | Timber Engineering Calculator | CSiSteel |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [3.9 (7 ratings)](https://appshunter.io/ios/app/timber-engineering-calculator/id646321927/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/csisteel/id1435293643/reviews)** |
| Number of ratings | 7 | 7 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 35 MB | 19 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Computers and Structures, Inc.](https://appshunter.io/developer/1119970032) |

## What reviewers say

### Timber Engineering Calculator

[App page](https://appshunter.io/ios/app/timber-engineering-calculator/id646321927)

This app provides 55 calculators for various timber and civil engineering parameters, covering beam properties, stress calculations, column design, and connector loads. It supports both metric (SI) and imperial (USCS) units for comprehensive engineering analysis.

**Highlights:** 55 engineering calculators, Timber and civil engineering parameters, Beam properties calculations, Stress and load analysis, Column design tools, Connector load calculations, Metric and imperial units

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

**In-app purchases:** none


### CSiSteel

[App page](https://appshunter.io/ios/app/csisteel/id1435293643)

This app provides a comprehensive library of steel sections and their structural properties. It helps users find optimum sections for design, search for equivalents, and sort by various parameters. Ideal for engineers, suppliers, teachers, and students involved in steel design projects.

**Highlights:** Comprehensive steel section library, Find equivalent steel sections, Search and sort by section properties, Supports ASD and LRFD methods, Includes AISC, CISC, and Arcelormittal sections

**In-app purchases:** none


## Frequently asked questions

### Is Timber Engineering Calculator free?

Timber Engineering Calculator costs $3.99, with no in-app purchases.

### Is CSiSteel free?

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

### Which has better reviews, Timber Engineering Calculator or CSiSteel?

CSiSteel is rated higher. Timber Engineering Calculator averages 3.9 out of 5 from 7 ratings, while CSiSteel averages 5.0 from 7 ratings.

### Do Timber Engineering Calculator or CSiSteel have ads?

Neither Timber Engineering Calculator nor CSiSteel shows ads.

### Which is updated more often, Timber Engineering Calculator or CSiSteel?

Timber Engineering Calculator ships an update every 39 months, and CSiSteel every 3 weeks. Most recently, Timber Engineering Calculator was updated on August 28, 2026 and CSiSteel on July 5, 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.*