Celsius® hollow section design vs Hyspecs Tools.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Celsius® hollow section design
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.
- 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
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This app is designed to help structural engineers to find the right hollow section size for their application. Just enter your design load conditions – ultimate axial load and required buckling length – and this app will calculate which section size, from the comprehensive Celsius® range of structural hollow sections, will best match your application. The app will also select sections for members in bending, based on strength or user‐specified deflection limit. The app will list the sections which meet your criteria, with all the relevant information, including the efficiency factor and mass per metre. Sections are classified relating to their availability in the UK market, so giving you confidence that your selected section will be widely available. Filters may be set to identify sections of a certain size, or utilization. Using the filters, results may be ordered by embodied CO₂, by size or by weight. Want to save your results? Just hold on the selected section and share it by email or any other messaging service. The Celsius range of fully normalized, true hot finished hollow sections from Tata Steel is fully compliant with EN 10210 and CE marked for construction applications. The range covers square, rectangular, circular and elliptical hollow sections from 40x40x4mm to 400x400x16mm and equivalent sizes in other shapes, with circular sections up to 508x16mm.
Hyspecs Tools.
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Hyspecs Tools brings hydraulic calculators and design references together in one iPhone app for sales, service, and engineering work. Use native calculator screens for common hydraulic requirements, including cylinder force, orifice flow, displacement, hose velocity, pressure drop, motor torque, pump power, accumulator sizing, conveyor drives, and more. The app also keeps important reference material close at hand, including bundled PDFs and spreadsheets that have not been converted into native calculators. Search by tool, topic, product, or file name, save frequently used references, and open document previews without digging through a folder. Built for practical field and customer conversations, Hyspecs Tools helps engineers move quickly from a question to a useful estimate. Calculator results are intended as engineering aids and should be checked against manufacturer data, project requirements, and appropriate safety factors.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 7, 2026 respectively.
| Parameter | Celsius® hollow section design | Hyspecs Tools. |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 7 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 11 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Tata Steel IJmuiden B.V. | Nick Cottier |
In-app purchases
Celsius® hollow section design
No in-app purchases
Hyspecs Tools.
No in-app purchases
Questions
Is Celsius® hollow section design free?
Is Hyspecs Tools. free?
Do Celsius® hollow section design or Hyspecs Tools. have ads?
Which is updated more often, Celsius® hollow section design or Hyspecs Tools.?
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