Comparison

WeldEquations vs CSiSteel

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

Head to head
About

WeldEquations

Features
Read full description

Useful for the preliminary sizing of welds, WeldEquations is an engineering calculator app that computes the section properties for typical welding patterns used in steel construction. After selecting a Weld Group, the user enters the dimensions for the depth and width. The section properties for the Weld Group, including the area, section moduli and polar moment of inertia, are instantly calculated. For practicality, both weld group dimensions are limited to a minimum of 0.25" and a maximum of 100".  The equations used by the app are available for reference and manual verification.

About

CSiSteel

This app provides a comprehensive library of steel sections and their structural properties. It helps users find optimum sections for design, search for equivalents, and sort by various parameters. Ideal for engineers, suppliers, teachers, and students involved in steel design projects.

Highlights
  • Comprehensive steel section library
  • Find equivalent steel sections
  • Search and sort by section properties
  • Supports ASD and LRFD methods
  • Includes AISC, CISC, and Arcelormittal sections
Read full description

CSiSteel features a comprehensive library of steel sections and their structural properties. From site engineers and suppliers looking for alternative sections based on regional availability, or construction constraints, and structural engineers looking for optimum sections in structural designs to teachers and students for steel design projects. Application/Usage: • Search and select optimum steel sections for steel design procedures, including ASD and LRFD methods • View equivalent sections based on user selection criteria Target Users: • Site engineers, contractors, and steel suppliers looking for alternative sections based on regional availability, or construction constraints • Structural and civil engineers looking for optimum sections for structural modelling and analysis • Teachers and students searching for steel sections in steel design projects Key Features: • Comprehensive library of steel sections including AISC, CISC, and Arcelormittal • Get equivalent sections for user selected sections • Search and sort for sections based on many parameters, including section properties Key Input: • Steel library • Section type, dimensions, or properties • Steel section Key Output: • Steel section • Section dimensions • Section properties • Equivalent steel sections

Screenshots

WeldEquations4 screens
CSiSteel4 screens

Verdict

The call

The clearest difference is update cadence: CSiSteel at every 3 weeks against WeldEquations's every 12 months. CSiSteel also leads on iOS requirement (9.0 vs 26.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

WeldEquations ships an update every 12 months, CSiSteel every 3 weeks. The most recent releases landed on July 4, 2026 and July 5, 2026 respectively.

Scorecard2 real differences · 8 level
WeldEquations versus CSiSteel: the parameters behind the verdict, then further details
ParameterWeldEquationsCSiSteel
PriceFreeFree
Rating—5.0 (7 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—7 — better
Update frequencyEvery 12 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.09.0 — better
Further details — not scored
Size7 MB19 MB
Age rating4+4+
DeveloperGlendale Coding Labs, IncComputers and Structures, Inc.

In-app purchases

None

WeldEquations

No in-app purchases

None

CSiSteel

No in-app purchases

Questions

Is WeldEquations free?
WeldEquations is free to download, with no in-app purchases.
Is CSiSteel free?
CSiSteel is free to download, with no in-app purchases.
Do WeldEquations or CSiSteel have ads?
Neither WeldEquations nor CSiSteel shows ads.
Which is updated more often, WeldEquations or CSiSteel?
WeldEquations ships an update every 12 months, and CSiSteel every 3 weeks. Most recently, WeldEquations was updated on July 4, 2026 and CSiSteel on July 5, 2026.

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