Comparison

Column Construction Calculator vs DrPhos' Stoichiometry

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

Head to head
About

Column Construction Calculator

Features
Read full description

Column Construction Calculator contains 35 calculators to measure and calculate different column and civil engineering parameters. NEW — Built-in Reference Library Look up standard material properties and auto-fill them straight into any calculator: • Steel — ASTM grades (A36, A992 W-shapes, A572 Grade 50, A500 Grade B & C HSS, A53 Grade B Pipe) with Yield Strength (Fy) and Modulus of Elasticity (E) • Aluminum — common structural aluminum grades • Concrete — ACI mix classes from 2500 psi to 10000 psi with compressive strength (f'c), modulus (Ec) and β₁ factor Available in Metric (SI) and Imperial (USCS) Units Column Calculator contains the following 35 Calculators: • Critical Buckling Load - Column Pivoted at Both Ends (Euler's Formula) • Critical Buckling Load - One End Fixed and Other End Rounded (Euler's Formula) • Critical Buckling Load - Both Ends Fixed (Euler's Formula) • Critical Buckling Load - One End Fixed and Other End Free (Euler's Formula) • Nominal Bearing Strength of Concrete (Column Base Plate Design) • Area of Base Plate for Factored Load • Length of Rectangular Base Plate (Wide-Flange Column) • Width of Base Plate - Parallel to the Flanges • Projection of Base Plate beyond the Flange and Parallel to the Web (m) • Projection of Base Plate beyond the Edges of the Flange and Perpendicular to the Web (n) • Equivalent Cantilever Dimension (n') • Column Base Plate Design Value (Lambda) • Column Base Plate Design Value (X) • Thickness of Base Plate (m) • Thickness of Base Plate (n) • Thickness of Base Plate (Lambda n') • Area of the Column • Allowable Bearing Pressure on Support (Base Plate occupies Full Area of Support) • Allowable Bearing Pressure on Support (Base Plate covers less than Full Area of Support) • Wall Thickness of Steel Pipe (Width of Face of Rectangular Section) • Wall Thickness of Steel Pipe (Outside Diameter of Circular Section) • Design Strength of Axially Loaded Composite Column • Design Strength of Concrete (Direct Bearing) • Effective Length Factor • Slenderness Ratio • Critical Buckling Load • Elastic Critical Buckling Load • Allowable Design Load – Aluminum Columns • Allowable Design Load – Aluminum Columns (Johnson's Equation – Straight Line) • Allowable Design Load – Aluminum Columns (Johnson's Equation – Squared Parabolic) • Ultimate Strength of Column - Zero Eccentricity of Load • Axial Load Capacity – Short Rectangular Members • Balanced Moment • Eccentricity – Balanced Condition • Eccentricity – Slender Columns

About

DrPhos' Stoichiometry

This tool simplifies solving chemical reaction problems by allowing users to input balanced equations and identify known and unknown compounds. It instantly calculates moles and mass, assisting students with various stoichiometry challenges.

Highlights
  • Mole, mass, and volume conversions
  • Balanced chemical equation support
  • Compound selection
  • Limiting reactant detection
  • High school and college chemistry focus
Features
Read full description

Solve Stoichiometry Problems Fast The DrPhos Stoichiometry Tool makes solving chemical reaction problems simple. Enter a balanced equation, choose known and unknown compounds, and instantly calculate moles and mass. Designed for chemistry students, this tool walks you through the stoichiometric process with clean visuals and intelligent logic. Whether you’re solving basic mole ratios or limiting reactant problems, this app keeps your work fast, accurate, and focused. Features: • Supports mole, mass, and volume conversions • Works with balanced chemical equations • Select known and unknown compounds easily • Built-in limiting reactant detection • Ideal for high school and college chemistry Use this app on its own or unlock it within the full DrPhos GenChem Helper suite to streamline your chemistry toolkit.

Screenshots

Column Construction Calculator4 screens
DrPhos' Stoichiometry4 screens

Verdict

The call

The clearest difference is in-app purchases: Column Construction Calculator at none against DrPhos' Stoichiometry's 11. DrPhos' Stoichiometry's advantage is update cadence (every 3 weeks vs every 38 months) and price ($0.99 vs $1.99). On ads, device support and iOS requirement 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

Column Construction Calculator costs $1.99 and DrPhos' Stoichiometry $0.99 up front. DrPhos' Stoichiometry sells 11 one-off in-app purchases. Column Construction Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Column Construction Calculator ships an update every 38 months, DrPhos' Stoichiometry every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 6 level
Column Construction Calculator versus DrPhos' Stoichiometry: the parameters behind the verdict, then further details
ParameterColumn Construction CalculatorDrPhos' Stoichiometry
Price$1.99$0.99 — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 38 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.2
Further details — not scored
Size34 MB15 MB
Age rating4+4+
DeveloperV PUGAZHENTHIMonte L Helm

In-app purchases

None

Column Construction Calculator

No in-app purchases

11 purchases

DrPhos' Stoichiometry

One-time11
  • Significant Figures Counter$0.99
  • Science Calculator$0.99
  • Quadratic Equation Solver$0.99
Show 8 more
  • Kinetics$0.99
  • Molar Mass Calculator$0.99
  • General Chemistry Naming$0.99
  • Ionic Compound Builder$0.99
  • Solution Concentrations$0.99
  • Reaction Balancer$0.99
  • pH Calculator$0.99
  • Stoichiometry$0.99

Questions

Is Column Construction Calculator free?
Column Construction Calculator costs $1.99, with no in-app purchases.
Is DrPhos' Stoichiometry free?
DrPhos' Stoichiometry costs $0.99, and also offers in-app purchases.
Do Column Construction Calculator or DrPhos' Stoichiometry have ads?
Neither Column Construction Calculator nor DrPhos' Stoichiometry shows ads.
Which is updated more often, Column Construction Calculator or DrPhos' Stoichiometry?
Column Construction Calculator ships an update every 38 months, and DrPhos' Stoichiometry every 3 weeks. Most recently, Column Construction Calculator was updated on October 14, 2026 and DrPhos' Stoichiometry on October 7, 2026.

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