# Celsius® hollow section design vs Hyspecs Tools.

The clearest difference is update cadence: Hyspecs Tools. at daily against Celsius® hollow section design's every 7 months. Celsius® hollow section design's advantage is iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Celsius® hollow section design ships an update every 7 months, Hyspecs Tools. daily. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Celsius® hollow section design | Hyspecs Tools. |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Monetization | Free | — |
| Size | 11 MB | 18 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tata Steel IJmuiden B.V.](https://appshunter.io/developer/1346513780) | [Nick Cottier](https://appshunter.io/developer/1895091696) |

## What reviewers say

### Celsius® hollow section design

[App page](https://appshunter.io/ios/app/celsius-hollow-section-design/id1484496183)

This app assists structural engineers in selecting the optimal hollow section size based on design load conditions and buckling length. It calculates and lists suitable sections from a comprehensive range, providing key information like efficiency factor and mass per meter. Users can filter results by size, utilization, embodied CO₂, or weight, and share selections via email or messaging.

**Highlights:** Calculate section size based on axial load and buckling length, Select sections for members in bending, List sections with efficiency factor and mass per meter, Filter results by size, utilization, CO₂, or weight, Classify sections by UK market availability, Share selected sections via email or messaging

**In-app purchases:** none


### Hyspecs Tools.

[App page](https://appshunter.io/ios/app/hyspecs-tools/id6781436357)

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

**In-app purchases:** none


## Frequently asked questions

### Is Celsius® hollow section design free?

Celsius® hollow section design is free to download, with no in-app purchases.

### Is Hyspecs Tools. free?

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

### Do Celsius® hollow section design or Hyspecs Tools. have ads?

Neither Celsius® hollow section design nor Hyspecs Tools. shows ads.

### Which is updated more often, Celsius® hollow section design or Hyspecs Tools.?

Celsius® hollow section design ships an update every 7 months, and Hyspecs Tools. daily. Most recently, Celsius® hollow section design was updated on October 13, 2026 and Hyspecs Tools. on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*