CSiSteel vs mechanical design engine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CSiSteel
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.
- 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
Read full descriptionHide full description
CSiSteel features a comprehensive library of steel sections and their structural properties. From site engineers and suppliers looking for alternative sections based on regional availability, or construction constraints, and structural engineers looking for optimum sections in structural designs to teachers and students for steel design projects. Application/Usage: • Search and select optimum steel sections for steel design procedures, including ASD and LRFD methods • View equivalent sections based on user selection criteria Target Users: • Site engineers, contractors, and steel suppliers looking for alternative sections based on regional availability, or construction constraints • Structural and civil engineers looking for optimum sections for structural modelling and analysis • Teachers and students searching for steel sections in steel design projects Key Features: • Comprehensive library of steel sections including AISC, CISC, and Arcelormittal • Get equivalent sections for user selected sections • Search and sort for sections based on many parameters, including section properties Key Input: • Steel library • Section type, dimensions, or properties • Steel section Key Output: • Steel section • Section dimensions • Section properties • Equivalent steel sections
mechanical design engine
Read full descriptionHide full description
* To calculate basic thickness of cylindrical/rectangular pressure vessel including heads if input data such as pressure, temperature, inner diameter and material information. * flange data can be easily searched. * Profile steel information such as pipe, H, W, I and U-Beam. * Raw material information, that is chemical composition and mechanical properties, for example, ASTM A240 316L, EN10297-1, SUS316L and so on. * Size and shape information of every thread(iso/unf/pf/pt) and shackles(bow/d-type) * To calculate force and moment of solid mechanics according to support type.
Screenshots
Verdict
The clearest difference is update cadence: CSiSteel at every 3 weeks against mechanical design engine's every 2 months. CSiSteel also leads on iOS requirement (9.0 vs 13.0). 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.
CSiSteel ships an update every 3 weeks, mechanical design engine every 2 months. The most recent releases landed on September 29, 2026 and October 11, 2026 respectively.
| Parameter | CSiSteel | mechanical design engine |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 19 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Computers and Structures, Inc. | gan dae choi |
In-app purchases
CSiSteel
No in-app purchases
mechanical design engine
No in-app purchases
Questions
Is CSiSteel free?
Is mechanical design engine free?
Do CSiSteel or mechanical design engine have ads?
Which is updated more often, CSiSteel or mechanical design engine?
Other comparisons
