# iWeld vs API 571 Helpmate

The clearest difference is in-app purchases: iWeld at none against API 571 Helpmate's 1. API 571 Helpmate's advantage is update cadence (every 8 months vs every 64 months) and iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. API 571 Helpmate sells 1 in-app purchase, starting at $29.00 per year. iWeld asks for nothing beyond the download.

iWeld ships an update every 64 months, API 571 Helpmate every 8 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | iWeld | API 571 Helpmate |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 64 months | **Every 8 months** |
| Monetization | Free | — |
| Size | 1 MB | 34 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ControlPoint](https://appshunter.io/developer/1048547450) | [Austenite Pty Ltd](https://appshunter.io/developer/1525502686) |

## What reviewers say

### iWeld

[App page](https://appshunter.io/ios/app/iweld/id573150022)

This app calculates optimal joint parameters for manual butt fusion machines. It guides users through the fusion process with timers and helpful tips. Compatible with various Welda and Bulldog models.

**Highlights:** Automatic weld parameter calculation, Supports multiple Welda and Bulldog models, Provides pre-set timers, Offers handy hints and guidance, Clear and concise information display

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### API 571 Helpmate

[App page](https://appshunter.io/ios/app/api-571-helpmate/id6746396841)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12 Months Plan | $29.00 | per year |


## Frequently asked questions

### Is iWeld free?

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

### Is API 571 Helpmate free?

API 571 Helpmate is free to download, with in-app purchases available.

### Do iWeld or API 571 Helpmate have ads?

Neither iWeld nor API 571 Helpmate shows ads.

### Which is updated more often, iWeld or API 571 Helpmate?

iWeld ships an update every 64 months, and API 571 Helpmate every 8 months. Most recently, iWeld was updated on October 6, 2026 and API 571 Helpmate on October 15, 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.*