Concrete Engineering vs CSI CARIBE+
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
CSI CARIBE+
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Innovación, conocimiento y comunidad en un solo lugar. Únete a nuestra plataforma y accede a recursos exclusivos, conecta con otros ingenieros estructurales y mantente al día con las últimas tendencias en software para el análisis y diseño de estructuras. ¡Suscríbete y construyamos juntos el futuro de la ingeniería! Computers and Structures, Inc. CSI, cumple 50 años innovando y brindándole al mundo herramientas de avanzada tecnología para el diseño, cálculo y revisión de estructuras existentes, deportivas, marítimas, en dos y tres dimensiones, conexiones de vías de comunicación, sistemas de tuberías industriales para petroleras, cimentaciones superficiales y profundas, análisis dinámicos lineales y no lineales. Our app offers auto-renewing subscriptions. You'll receive unlimited access to content on all your devices. Payment is charged to your account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews each month unless canceled at least 24 hours before the end of the current billing period, or the trial period (when offered). Cancel anytime in Account Settings. Terms of service: https://csicaribe.uscreen.io/terms Privacy policy: https://csicaribe.uscreen.io/privacy
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Verdict
The clearest difference is ads: CSI CARIBE+ at none against Concrete Engineering's shown. CSI CARIBE+ also leads on update cadence (monthly vs every 7 months) and iOS requirement (15.0 vs 18.6). On price, 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. Concrete Engineering sells 1 one-off in-app purchase and CSI CARIBE+ sells 5 in-app purchases, starting at $9.00 per month. Whichever you choose, the download price is not the number that matters.
Concrete Engineering ships an update every 7 months, CSI CARIBE+ monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | Concrete Engineering | CSI CARIBE+ |
|---|---|---|
| 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 | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| 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 | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | V PUGAZHENTHI | CSI CARIBE LLC |
In-app purchases
Concrete Engineering
- Concrete Engineering Calc.$3.99
CSI CARIBE+
- Mensual$9.001 Month
- Semestral$72.006 Months
- Anual$99.001 Year
- Content Tier $100.00$100.00
- Content Tier $200.00$200.00
Questions
Is Concrete Engineering free?
Is CSI CARIBE+ free?
Do Concrete Engineering or CSI CARIBE+ have ads?
Which is updated more often, Concrete Engineering or CSI CARIBE+?
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