Concrete Engineering vs DPA93
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Concrete Engineering
This app provides a comprehensive suite of calculators for concrete and civil engineering parameters. It features smart auto-fill options, a detailed calculation history with PDF export, and direct references to ACI codes. Unlock all 56 calculators with a one-time purchase.
- 56 concrete and civil engineering calculators
- Metric and Imperial unit support
- Detailed formulas for all calculations
- Smart auto-fill pickers
- Calculation history with PDF export
- ACI 318-19 code references
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Concrete Engineering Calculator is a user-friendly app with 56 calculators for concrete and civil engineering parameters. This version introduces smart auto-fill pickers, a full calculation history with PDF export, and ACI code references on every calculator. Key Features: 56 calculators covering beams, columns, slabs, walls, and more Supports both Metric (SI) and Imperial (USCS) units Includes detailed formulas for all calculations Smart auto-fill pickers for concrete mix grades, rebar grades, and bar sizes Calculation history with save, review, and PDF export ACI 318-19 code reference badge on every calculator 6 calculators free forever, 56 total — unlock all with a one-time purchase, no subscription Beam Calculations: Water/Cementitious Materials Ratio Modulus of Elasticity Tensile Strength Compressive Stress (Beam) Stress in Reinforcement Cross-sectional Area (Tensile and Compressive Reinforcement) Stress (Extreme Fiber of Concrete) Shear and Diagonal Tension Nominal Shear Stress Ultimate Shear Capacity Cracking Moment Bending Moment Capacity (Underreinforced and Rectangular Beams) Column Calculations: Total Allowable Axial Load Spiral Reinforcing Ratio Long-Column Load Reduction Factor (Fixed Ends) Maximum Permissible Eccentricity (Spiral and Tied Columns) Bending Load (Spiral and Tied Columns) Slab and Wall Calculations: Slab Thickness Flexural Stiffness Ratio (Beam Section and Slab Width) Axial Capacity of Wall Nominal Shear Stress on Wall Vertical Shear Reinforcement Ratio of Wall Development Lengths and Crack Control: Tension Development Lengths (Various Bar Types) Compression Development Length Development Length (Hooked Bar) Crack Width Control Additional Calculations: Volume of Spiral Steel to Concrete Core Ratio Moment at Balanced Condition Shear Friction Reinforcement Area Coefficient of Sliding Friction Modular Ratio Steel Ratio Effective Moment of Inertia Total End Shear (Counterfort Walls) Ultimate Strength (No Wind, With Wind, With Earthquake Load) Auto-Fill Reference Pickers: Concrete mix picker fills compressive strength and modulus of elasticity automatically Rebar grade picker fills yield strength and modulus of steel automatically Bar size picker fills cross-sectional area and diameter automatically All pickers support both SI and USCS unit modes
DPA93
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Aplicación con plantillas que incluyen el procedimiento de diseño de pavimentos rígidos y flexibles por el Método AASHTO 93. Contiene la opción de utilizar los parámetros de diseño del MTC de acuerdo al ESAL ingresado. Incluye además plantillas con las siguientes herramientas: - Calculo de ESAL - Calculo de coeficientes de aporte estructural - Convertidor de unidades
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Verdict
The clearest difference is in-app purchases: DPA93 at none against Concrete Engineering's 1. DPA93 also leads on ads (none vs shown) and update cadence (every 3 days vs every 7 months). 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. Concrete Engineering sells 1 one-off in-app purchase. DPA93 asks for nothing beyond the download.
Concrete Engineering ships an update every 7 months, DPA93 every 3 days. The most recent releases landed on September 18, 2026 and February 28, 2026 respectively.
| Parameter | Concrete Engineering | DPA93 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (7 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 7 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | Juan Javier Baba Toyofuko |
In-app purchases
Concrete Engineering
- Concrete Engineering Calc.$3.99
DPA93
No in-app purchases
Questions
Is Concrete Engineering free?
Is DPA93 free?
Do Concrete Engineering or DPA93 have ads?
Which is updated more often, Concrete Engineering or DPA93?
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