Comparison

Civil Engineering Calculators vs Simplex Optima

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Civil Engineering Calculators

This comprehensive tool offers over 480 calculators and converters for civil engineering disciplines. It supports both Metric and Imperial units, covering structural, concrete, hydraulics, soil, and more. Designed for professionals and students, it provides an all-in-one solution for complex calculations.

Highlights
  • 484+ calculators and converters
  • SI and USCS unit support
  • Structural engineering tools
  • Concrete engineering calculations
  • Hydraulics and waterworks formulas
  • Soil and earthwork analysis
  • Unit conversion tools
Features
Read full description

Civil Engineering Calculators & Converters Your ultimate engineering companion with 484 calculators and converters covering both SI (Metric) and USCS (Imperial) units. The app features 12 comprehensive modules: Key Modules & Features 1. Structural Engineering - 58 Calculators & Formulas: • Shear Capacity of Flexural Members • Slenderness Ratio • Allowable Compressive Stress (Columns) • Bending Stress (Compact/Non-Compact Members) • Safety Factor • Axially Loaded Member Analysis, and more. 2. Concrete Engineering - 56 Calculators: • Water-Cement Ratio • Job Mix Concrete Volume • Modulus of Elasticity • Stress in Reinforcement (Beams) • Compressive Stress (Beam) • Cross-Sectional Areas of Reinforcement, and more. 3. Hydraulics & Waterworks - 94 Calculators: • Capillary Rise • Hydrostatic Pressure • Bernoulli Equation Head Loss • Total Energy and Head of Flow • Average Flow Velocity, and more. 4. Soil & Earthwork - 60 Calculators: • Void Ratio • Degree of Saturation • Porosity • Plasticity Index • Shrinkage Index • Relative Density, and more. 5. Engineering Survey - 33 Calculators: • Standard Deviation • Probable Error (Single/Multiple Observations) • Temperature Correction • Slope Measurement Corrections, and more. 6. Timber Engineering - 55 Calculators: • Moment of Inertia (Rectangular/Square Beam) • Maximum Fiber Stress • Horizontal Shearing Stress • Section Modulus, and more. 7. Highways & Roadwork - 37 Calculators: • Circular Curve Parameters (Radius, Degree, Tangent Distance) • Midordinate and Length of Curve, and more. 8. Bridge Engineering - 58 Calculators: • Specialized tools for bridge design and analysis. 9. Piles & Piling - Comprehensive calculators for foundation design. 10. Unit Converters - 32 essential converters: • Pressure, Volume, Area, Force, and more. Why Choose This App? • All-in-One Solution: Covers every aspect of civil engineering, from structural analysis to surveying. • Dual Unit Support: Seamless switching between Metric (SI) and Imperial (USCS) systems. • User-Friendly: Intuitive design for professionals and students alike. Explore the remaining calculators and features directly in the app—space is too short to list them all!

About

Simplex Optima

Features
Read full description

The general form of an optimization problem comprises a linear function of variables, also called "objective function" and a number of constraint inequalities. The app can facilitate a maximisation as well as minimisation problem bearing up to 7 variables and up to 6 contraint inequalities. The solution algorithm is implemented by constructing and manipulating the Simplex tableau before calculating the parameters for which the maximum value of the objective function is obtained.

Screenshots

Civil Engineering Calculators4 screens
Simplex Optima4 screens

Verdict

The call

The clearest difference is price: Simplex Optima at $2.99 against Civil Engineering Calculators's $19.99. Simplex Optima also leads on update cadence (every 5 days vs every 14 months) and iOS requirement (13.3 vs 16.0). On 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

CostPrice · In-app purchases · Ads · Monetization

Civil Engineering Calculators costs $19.99 and Simplex Optima $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Civil Engineering Calculators ships an update every 14 months, Simplex Optima every 5 days. The most recent releases landed on September 5, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
Civil Engineering Calculators versus Simplex Optima: the parameters behind the verdict, then further details
ParameterCivil Engineering CalculatorsSimplex Optima
Price$19.99$2.99 — better
Rating4.8 (12 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings12 — better—
Update frequencyEvery 14 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.3 — better
Further details — not scored
Size39 MB2 MB
Age rating4+4+
DeveloperV PUGAZHENTHIKonstantinos Ladiellis

In-app purchases

None

Civil Engineering Calculators

No in-app purchases

None

Simplex Optima

No in-app purchases

Questions

Is Civil Engineering Calculators free?
Civil Engineering Calculators costs $19.99, with no in-app purchases.
Is Simplex Optima free?
Simplex Optima costs $2.99, with no in-app purchases.
Do Civil Engineering Calculators or Simplex Optima have ads?
Neither Civil Engineering Calculators nor Simplex Optima shows ads.
Which is updated more often, Civil Engineering Calculators or Simplex Optima?
Civil Engineering Calculators ships an update every 14 months, and Simplex Optima every 5 days. Most recently, Civil Engineering Calculators was updated on September 5, 2026 and Simplex Optima on September 10, 2026.

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