# Celsius® hollow section design vs Harris Auto

The clearest difference is iOS requirement: Celsius® hollow section design at 12.0 against Harris Auto's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Celsius® hollow section design | Harris Auto |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/harris-auto/id1606581850/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | Free | Free |
| Size | 11 MB | 27 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tata Steel IJmuiden B.V.](https://appshunter.io/developer/1346513780) | [Brad Harris](https://appshunter.io/developer/1606581852) |

## 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


### Harris Auto

[App page](https://appshunter.io/ios/app/harris-auto/id1606581850)

Easily schedule, update, and track your service bookings. You can also raise support issues directly through the app. Manage all your automotive service needs in one place.

**Highlights:** Schedule service bookings, Update or delete bookings, Track booking status, Raise support issues

**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 Harris Auto free?

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

### Do Celsius® hollow section design or Harris Auto have ads?

Neither Celsius® hollow section design nor Harris Auto shows ads.

### Which is updated more often, Celsius® hollow section design or Harris Auto?

Celsius® hollow section design ships an update every 7 months, and Harris Auto every 7 months. Most recently, Celsius® hollow section design was updated on October 13, 2026 and Harris Auto on October 16, 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.*