Comparison

WeldEquations vs Airgas

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

Airgas

Quickly reorder frequently purchased gases, welding, and safety products using your existing account. Streamline your ordering process from your phone or tablet, saving time and effort.

Highlights
  • Quick reordering of up to 50 items
  • Access to frequently purchased items
  • Biometric login for fast access
  • Switch between multiple accounts
  • Order anytime, anywhere
Read full description

The Airgas Reorder App is the quick, easy way for busy Airgas customers like you to reorder up to 50 of your frequently purchased items in a fraction of the usual time. If you’ve already ordered from Airgas (whether at a branch, through an Airgas representative or online at Airgas.com), you can now reorder with this app using your Airgas.com login to access your frequently purchased items. If you don’t have an Airgas.com account, you can create one today to make your job easier at www.airgas.com/register. Reorder anytime, anywhere: ● Reordering at your fingertips — on your phone or tablet ● See all your accounts — it’s simple to switch between accounts if you have more than one ● Get what you need most — order up to 50 of your frequently purchased items Save time: ● Reorder in seconds — just a few quick taps places orders fast ● No waiting — order right away instead of waiting until you’re back at your desk ● No fussing with passwords — take advantage of your device’s biometric capabilities for quick login Get more done: ● Easy reordering — streamlined processes help you order fast and get back to business If you’re an Airgas customer who needs to reorder your gases, welding and safety products, this is the time-saving app you’ve been waiting for. It’s the fastest way to reorder from Airgas. (Note: this Airgas Reorder App should not be used for orders required to be placed through your eProcurement platform or the Airgas SupplySync punchout site.) Don’t wait—download the free Airgas Reorder App and log into your Airgas.com account to get started today!

Screenshots

WeldEquations4 screens
Airgas4 screens

Verdict

The call

The clearest difference is update cadence: Airgas at every 6 months against WeldEquations's every 12 months. Airgas also leads on iOS requirement (11.0 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, Airgas every 6 months. The most recent releases landed on July 4, 2026 and June 4, 2026 respectively.

Scorecard2 real differences · 8 level
WeldEquations versus Airgas: the parameters behind the verdict, then further details
ParameterWeldEquationsAirgas
PriceFreeFree
Rating—4.9 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 12 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.011.0 — better
Further details — not scored
Size7 MB43 MB
Age rating4+4+
DeveloperGlendale Coding Labs, IncAirgas, Inc.

In-app purchases

None

WeldEquations

No in-app purchases

None

Airgas

No in-app purchases

Questions

Is WeldEquations free?
WeldEquations is free to download, with no in-app purchases.
Is Airgas free?
Airgas is free to download, with no in-app purchases.
Do WeldEquations or Airgas have ads?
Neither WeldEquations nor Airgas shows ads.
Which is updated more often, WeldEquations or Airgas?
WeldEquations ships an update every 12 months, and Airgas every 6 months. Most recently, WeldEquations was updated on July 4, 2026 and Airgas on June 4, 2026.

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