Structural Engineering lite vs Mechanical Engg. Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Structural Engineering lite
This app provides engineers with essential structural formulas and calculations for civil construction projects. It offers instant results, demand/capacity checks, and a built-in database of materials and sections, all accessible on mobile devices.
- 59 structural formulas (AISC/ACI)
- Instant demand/capacity checks
- Built-in AISC section database
- Material and code references
- USCS & SI unit support
- Pass/Fail visual indicator
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Structural Engineering Calculator delivers 59 AISC and ACI structural formulas with instant results, demand/capacity checks, a built-in AISC section database, and material references — all in one app. Whether you’re on site, in the office, or reviewing drawings, every calculation you need is in your pocket. 59 STRUCTURAL FORMULAS COLUMNS Critical Ratio (Cc), Effective Length Factor (K), Slenderness Ratio (KL/r), Allowable Compressive Stress (Sr less than Cc), Allowable Compressive Stress (Sr greater than Cc), Safety Factor, Maximum Axial Load. BEAMS Shear Capacity of Flexural Members, Allowable Bending Stress (Compact and Noncompact), Moment Gradient Factor (Cb), Allowable Flange Bending Stress, Plastic Moment (Mp), Lateral Unbraced Lengths (Lp and Lr), Limiting Buckling Moment (Mr), Nominal Moment (Mn), Critical Elastic Moment (Mcr), Allowable Shear Stress, Beam Deflection for UDL and Point Load. BASE PLATES Base Plate Area, Plate Thickness, Bearing Pressure, Flange and Web Thickness, Plate Dimensions N and B. COMPOSITE BEAMS Horizontal Shear for Concrete and Steel, Number of Shear Connectors, Transformed Section Properties, Modular Ratio, Elastic Neutral Axis. CONNECTIONS Allowable Shear with Tension Field Action, Allowable Bearing Stress for Rollers and Rockers, Axial Stress for Concentrated Loads, Allowable Bearing Stress on Fasteners, Number of Shear Connectors, Total Horizontal Shear. AISC CODE REFERENCES Every formula links directly to AISC/ACI clauses — AISC 360-16, AISC ASD 9th Edition, ACI 318-19, and AISC Design Guide 3. PASS / FAIL CHECK Instant visual adequacy check with demand/capacity ratio — green for PASS, red for FAIL. AISC SECTION PICKER Browse W-shapes (AISC 15th Edition) and auto-fill section properties instantly. REFERENCE TAB Built-in library with W-sections (W4–W44), ASTM materials (A36, A992, A572, A500, A325, A490, F1554), weld electrodes, concrete grades, and codes. USCS & SI UNITS Switch anytime between inches/ksi and mm/MPa with automatic conversion. All section and material data included. Supports both USCS and SI units. Compatible with iPhone and iPad. Pay once — no subscriptions. References: AISC Steel Construction Manual 15th Edition, AISC 360-16, AISC ASD 9th Edition, ACI 318-19, AISC Design Guide 3.
Mechanical Engg. Calculator
This app provides a comprehensive collection of ~250 formulas across 16 categories for mechanical engineering, physics, and mathematics. Users can easily perform calculations by selecting a formula and inputting variables.
- ~250 formulas
- 16 categories
- Mathematics, physics, mechanical engineering
- User-friendly calculation input
- Customizable for convenience
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An excellent tool for mechanical engineers or students at university and college, the Trelleborg Sealing Solutions Mechanical Engineering Formula Calculator offers ~250 formulas in 16 categories, with more being added in upcoming updates. Categories include the fields of mathematics, physics, and mechanical engineering. To perform calculations, all a user needs to do is choose a formula and enter the required variables. The app will then calculate the equation and display the result. For faster and convenient calculations the Formula Calculator can be customized on an individual level. The following categories are available: • Actuator • Algebra • Bearing • Fluid Power • Gravitation • Kinematics • Kinetic Energy • Kinetic theory of gases • Laws of motion • Oscillations • Properties of solid and liquid • Rotational motion • Thermodynamics • Trigonometry • Waves and sound • Work energy power
Screenshots
Verdict
The clearest difference is rating: Structural Engineering lite at 4.2 against Mechanical Engg. Calculator's 3.7. Structural Engineering lite also leads on review sentiment (60% vs 25%) and update cadence (every 6 months vs every 21 months). Mechanical Engg. Calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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. Structural Engineering lite sells 1 one-off in-app purchase. Mechanical Engg. Calculator asks for nothing beyond the download.
Structural Engineering lite holds the better App Store score, 4.2 against 3.7. That said, the two scores are not equally well evidenced: Structural Engineering lite has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of Structural Engineering lite's written reviews are positive against 25% of Mechanical Engg. Calculator's.
Structural Engineering lite ships an update every 6 months, Mechanical Engg. Calculator every 21 months. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.
| Parameter | Structural Engineering lite | Mechanical Engg. Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (19 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 60.0% of reviews — better | 25.0% of reviews |
| Number of ratings | 19 — better | 3 |
| Update frequency | Every 6 months — better | Every 21 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Trelleborg Sealing Solutions |
Customer experience
Structural Engineering lite
Mechanical Engg. Calculator
In-app purchases
Structural Engineering lite
- Structural Engineering Calc.$5.99
Mechanical Engg. Calculator
No in-app purchases
Questions
Is Structural Engineering lite free?
Is Mechanical Engg. Calculator free?
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