# PASCHAL AR (DK) vs Celsius® hollow section design

The clearest difference is update cadence: PASCHAL AR (DK) at every 4 months against Celsius® hollow section design's every 7 months. 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.

PASCHAL AR (DK) ships an update every 4 months, Celsius® hollow section design every 7 months. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | PASCHAL AR (DK) | Celsius® hollow section design |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | — | Free |
| Size | 173 MB | 11 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paschal AS](https://appshunter.io/developer/1431832767) | [Tata Steel IJmuiden B.V.](https://appshunter.io/developer/1346513780) |

## What reviewers say

### PASCHAL AR (DK)

[App page](https://appshunter.io/ios/app/paschal-ar-dk/id1385734026)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is PASCHAL AR (DK) free?

PASCHAL AR (DK) is free to download, with no in-app purchases.

### Is Celsius® hollow section design free?

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

### Do PASCHAL AR (DK) or Celsius® hollow section design have ads?

Neither PASCHAL AR (DK) nor Celsius® hollow section design shows ads.

### Which is updated more often, PASCHAL AR (DK) or Celsius® hollow section design?

PASCHAL AR (DK) ships an update every 4 months, and Celsius® hollow section design every 7 months. Most recently, PASCHAL AR (DK) was updated on October 2, 2026 and Celsius® hollow section design on September 27, 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.*