# WeldEquations vs A

The clearest difference is in-app purchases: WeldEquations at none against A's 1. A's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 26.0). On price, update cadence and ads there is nothing between them.

Both are free to download. A sells 1 one-off in-app purchase. WeldEquations asks for nothing beyond the download.

WeldEquations ships an update every 12 months, A every 10 months. The most recent releases landed on September 27, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | WeldEquations | A |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/a-number/id1547102751/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 10 months** |
| Monetization | — | Free |
| Size | 7 MB | 2 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Glendale Coding Labs, Inc](https://appshunter.io/developer/1266859626) | [Shabbir Ahmed](https://appshunter.io/developer/1083166021) |

## What reviewers say

### WeldEquations

[App page](https://appshunter.io/ios/app/weldequations/id1266859627)

**Features:** macOS Compatibility

**In-app purchases:** none


### A

[App page](https://appshunter.io/ios/app/a-number/id1547102751)

This utility app calculates the A-Number for deposited weld metal based on its chemical composition. It simplifies the process of comparing weld metal composition against ASME Section IX standards, aiding in procedure qualification and ensuring compliance.

**Highlights:** Determines A-Number from chemical composition, Compares weld metal to ASME Section IX ranges, Aids in procedure qualification, Supports ASME Section IX 2023 Edition, Provides accurate results

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Non-Consumable Subscription | $1.99 | one-time |


## Frequently asked questions

### Is WeldEquations free?

WeldEquations is free to download, with no in-app purchases.

### Is A free?

A is free to download, with in-app purchases available.

### Do WeldEquations or A have ads?

Neither WeldEquations nor A shows ads.

### Which is updated more often, WeldEquations or A?

WeldEquations ships an update every 12 months, and A every 10 months. Most recently, WeldEquations was updated on September 27, 2026 and A on September 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*