# WeldZip vs HDPE Pipe Welding Assistant

The clearest difference is update cadence: HDPE Pipe Welding Assistant at every 6 weeks against WeldZip's every 8 months. WeldZip's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

WeldZip ships an update every 8 months, HDPE Pipe Welding Assistant every 6 weeks. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | WeldZip | HDPE Pipe Welding Assistant |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 weeks** |
| Size | 85 MB | 33 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai KongDe IT Co., LTD.](https://appshunter.io/developer/1235370082) | [Arnon Haim](https://appshunter.io/developer/1839914393) |

## What reviewers say

### WeldZip

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

**Features:** macOS Compatibility

**In-app purchases:** none


### HDPE Pipe Welding Assistant

[App page](https://appshunter.io/ios/app/hdpe-pipe-welding-assistant/id6752566861)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WeldZip free?

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

### Is HDPE Pipe Welding Assistant free?

HDPE Pipe Welding Assistant is free to download, with no in-app purchases.

### Do WeldZip or HDPE Pipe Welding Assistant have ads?

Neither WeldZip nor HDPE Pipe Welding Assistant shows ads.

### Which is updated more often, WeldZip or HDPE Pipe Welding Assistant?

WeldZip ships an update every 8 months, and HDPE Pipe Welding Assistant every 6 weeks. Most recently, WeldZip was updated on October 8, 2026 and HDPE Pipe Welding Assistant on October 13, 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.*