# A vs WeldZip

The clearest difference is in-app purchases: WeldZip at none against A's 1. On price, update cadence, ads and device support there is nothing between them.

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

A ships an update every 10 months, WeldZip every 8 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | A | WeldZip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/a-number/id1547102751/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 8 months** |
| Monetization | Free | — |
| Size | 2 MB | 85 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shabbir Ahmed](https://appshunter.io/developer/1083166021) | [Shanghai KongDe IT Co., LTD.](https://appshunter.io/developer/1235370082) |

## What reviewers say

### 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 |


### WeldZip

[App page](https://appshunter.io/ios/app/weldzip/id6739935720)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A free?

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

### Is WeldZip free?

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

### Do A or WeldZip have ads?

Neither A nor WeldZip shows ads.

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

A ships an update every 10 months, and WeldZip every 8 months. Most recently, A was updated on September 7, 2026 and WeldZip on September 9, 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.*