# Pipe Trades Pro Calc vs WeldKit

Pipe Trades Pro Calc and WeldKit both sit at 4.8 stars, but that hides the real split: 100% of WeldKit's written reviews are positive against 43% of Pipe Trades Pro Calc's. WeldKit also leads on update cadence (every 3 weeks vs every 7 months). Pipe Trades Pro Calc's advantage is ads (none vs shown) and ratings volume (4.4K vs 1). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Pipe Trades Pro Calc sells 2 in-app purchases, starting at $4.99 per month and WeldKit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

WeldKit holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Pipe Trades Pro Calc has 4.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 43% of Pipe Trades Pro Calc's written reviews are positive against 100% of WeldKit's.

Pipe Trades Pro Calc ships an update every 7 months, WeldKit every 3 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pipe Trades Pro Calc | WeldKit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4.4K ratings)](https://appshunter.io/ios/app/pipe-trades-pro-calc/id596142100/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/weldkit-welding-calculators/id6761280549/reviews)** |
| Number of ratings | **4.4K** | 1 |
| Positive reviews | 42.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#189** | — |
| Size | 51 MB | 47 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Mark Laporte](https://appshunter.io/developer/1888573188) |

## What reviewers say

### Pipe Trades Pro Calc

[App page](https://appshunter.io/ios/app/pipe-trades-pro-calc/id596142100)

**Currently charting:** #189 Top Grossing · Utilities (US App Store)

This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.

**Highlights:** Advanced measurement calculations, Fluid dynamics and pressure analysis, Comprehensive pipe data access, Offline functionality, User-centric interface, Material and dimension options

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Full Access | $4.99 | per month |
| 1 Year Full Access | $39.99 | per year |

**What reviewers like**

- 🔢 Useful calculator tool
- 🧠 Helpful for pipe fitters and welders
- 📱 Convenient to have on mobile device
- 🔍 Accurate calculations

**What reviewers complain about**

- 💰 Subscription model is too expensive
- 🔒 Requires internet connection to verify subscription
- 🔄 Used to be a one-time purchase
- 🤔 Confusing transition from one-time to subscription

**Reported bugs**

- App freezes or stops working after updates
- Calculation errors with fractions
- Issues with reinstalling or transferring purchases

**Requested features**

- Ability to use app without subscription
- Support for larger pipe sizes
- Add a back/undo button
- Rotate screen orientation


### 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 Pipe Trades Pro Calc free?

Pipe Trades Pro Calc is free to download, with in-app purchases available.

### Is WeldKit free?

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

### Which has better reviews, Pipe Trades Pro Calc or WeldKit?

WeldKit is rated higher. Pipe Trades Pro Calc averages 4.8 out of 5 from 4.4K ratings, while WeldKit averages 5.0 from 1 ratings.

### Do Pipe Trades Pro Calc or WeldKit have ads?

WeldKit shows ads; Pipe Trades Pro Calc does not.

### Which is updated more often, Pipe Trades Pro Calc or WeldKit?

Pipe Trades Pro Calc ships an update every 7 months, and WeldKit every 3 weeks. Most recently, Pipe Trades Pro Calc was updated on November 7, 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.*