Structer vs SteelKit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Structer
This structural analysis toolbox offers clear calculations and visualizations for aerospace engineering students and practicing engineers. It covers common problems in aircraft structural analysis and sizing, suitable for educational use and preliminary analysis.
- Section Properties & Stress calculations
- Beam Internal Loads analysis
- 2D Stress Mohr's Circle
- Elastic Column Buckling (Euler)
- Stress due to Axial and Bending Loads
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Structer is a structural analysis toolbox for students and practicing engineers in aerospace structures. It provides clear calculations and visualizations for common problems in aircraft structural analysis and sizing. StruCalc is intended for educational use, preliminary analysis, and engineering sanity checks. **Included Tools:** • Section Properties & Stress –Area, centroid, moments of inertia, section modulus, and stress analysis for common sections • Beam Internal Loads – Support reactions, shear and bending diagrams for simple beams and combined loading • Mohr’s Circle (2D Stress) – Principal stresses, maximum shear stress, and orientation • Elastic Column Buckling (Euler) – Preliminary buckling screening for slender compression members with effective length factors • Stress Due to Axial and Bending Loads – Compute section stress based on user-defined area, moment of inertias and location. **Methods and Validation:** Calculations use standard closed-form analytical formulas, cross-checked against independent hand calculations and standard engineering references, including: – Megson T.H.G — Aircraft Structures for Engineering Students – Young, W.C. & Budynas, R. G. — Roark's Formulas for Stress and Strain – Bruhn, E.F. — Analysis and Design of Flight Vehicle Structures – Niu, Michael C. Y. - Airframe Stress Analysis and Sizing
SteelKit
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SteelKit is the go-to reference tool for metalworkers: fabricators, blacksmiths, structural steel contractors, and engineers. COMPLETE PROFILE CATALOG Instantly look up structural steel profiles: IPE, IPN, UPN, HEA, HEB, HEM, round tubes, rectangular tubes, angles, rounds, and flats. Every profile shows weight per meter, dimensions, and technical data. CALCULATE WEIGHT IN SECONDS Enter the length and get the total weight of the piece. Works for custom profiles too — just enter the dimensions. MATERIAL LISTS Build cut lists with your materials, set a price per kg, and get an estimated cost. Perfect for quick quotes right on the job site or in the workshop. FREQUENTLY USED PROFILES SteelKit remembers the profiles you look up most, so they're always within reach. UNIT CONVERTER Quickly convert between millimeters, inches, kg, pounds, and other common industry units. SUPPLIER MANAGEMENT Keep track of your preferred suppliers with notes and contacts — all stored locally on your device. WORKS OFFLINE No internet connection needed. All data lives on your device, available even where there's no signal. MULTILINGUAL Available in Italian, English, French, German, Spanish, and Portuguese. Built for people who work in the field, with an interface designed to be used with greasy hands.
Screenshots
Verdict
The clearest difference is iOS requirement: SteelKit at 17.6 against Structer's 26.1. 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.
| Parameter | Structer | SteelKit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.1 | 17.6 — better |
| Further details — not scored | ||
| Size | 6 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | RUI CHEN | ALECU POPA |
In-app purchases
Structer
No in-app purchases
SteelKit
No in-app purchases








