# WeldZip vs WeldKit

The clearest difference is in-app purchases: WeldZip at none against WeldKit's 1. WeldZip also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.1). WeldKit's advantage is update cadence (every 3 weeks vs every 8 months). On price and device support there is nothing between them.

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

WeldZip ships an update every 8 months, WeldKit every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | WeldZip | WeldKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/weldkit-welding-calculators/id6761280549/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 85 MB | 47 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai KongDe IT Co., LTD.](https://appshunter.io/developer/1235370082) | [Mark Laporte](https://appshunter.io/developer/1888573188) |

## What reviewers say

### WeldZip

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

**Features:** macOS Compatibility

**In-app purchases:** none


### WeldKit

[App page](https://appshunter.io/ios/app/weldkit-welding-calculators/id6761280549)

This app provides essential welding calculations and reference tools for professionals. It offers a free MIG calculator and unlocks seven additional calculators with a one-time purchase, eliminating subscriptions. Designed for speed and ease of use in shop or field environments, it helps users dial in settings and work with greater confidence.

**Highlights:** MIG, TIG, Stick, Flux-Core calculators, Plasma Cutting and Heat Input calculators, Weld Cost Estimator, Preheat Temperature Calculator, Fast, simple interface, Imperial and metric support, No accounts required

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WeldKit Pro | $9.99 | one-time |


## Frequently asked questions

### Is WeldZip free?

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

### Is WeldKit free?

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

### Do WeldZip or WeldKit have ads?

WeldKit shows ads; WeldZip does not.

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

WeldZip ships an update every 8 months, and WeldKit every 3 weeks. Most recently, WeldZip was updated on October 30, 2026 and WeldKit on October 31, 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.*