# Pipe Trades Pro Calc vs Magnetometer / Gaussmeter

The clearest difference is price: Pipe Trades Pro Calc at Free against Magnetometer / Gaussmeter's $0.99. Pipe Trades Pro Calc also leads on ratings volume (4.4K vs 1) and update cadence (every 7 months vs every 40 months). Magnetometer / Gaussmeter's advantage is in-app purchases (none vs 6) and iOS requirement (8.0 vs 14.0). On rating, review sentiment, ads and chart position there is nothing between them.

Pipe Trades Pro Calc is free to download; Magnetometer / Gaussmeter costs $0.99 up front. Pipe Trades Pro Calc sells 2 in-app purchases, starting at $4.99 per month. Magnetometer / Gaussmeter asks for nothing beyond the download.

Magnetometer / Gaussmeter 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 50% of Magnetometer / Gaussmeter's.

Pipe Trades Pro Calc ships an update every 7 months, Magnetometer / Gaussmeter every 40 months. The most recent releases landed on November 12, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Pipe Trades Pro Calc | Magnetometer / Gaussmeter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| 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/magnetometer-gaussmeter/id944150988/reviews)** |
| Number of ratings | **4.4K** | 1 |
| Positive reviews | 42.6% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 40 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | #196 | **#185** |
| Size | 51 MB | 4 MB |
| Requires iOS | 14.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Stefano Caschi](https://appshunter.io/developer/306389929) |

## What reviewers say

### Pipe Trades Pro Calc

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

**Currently charting:** #196 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


### Magnetometer / Gaussmeter

[App page](https://appshunter.io/ios/app/magnetometer-gaussmeter/id944150988)

**Currently charting:** #185 Top Paid · Utilities (US App Store)

Transforms your device into a magnetic field strength meter. Detect residual magnetism in steel objects, measure magnet strength, and analyze magnetic fields on three axes. Useful for various applications including material assessment and component analysis.

**Highlights:** Magnetic Strength Meter (DC Gauss Meter), Detect residual magnetism in steel, Measure magnetism on three axes (x,y,z), Switchable units: Tesla, Gauss, 1 mG (0.1μT) Resolution, Check magnet strength

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

**In-app purchases:** none


## Frequently asked questions

### Is Pipe Trades Pro Calc free?

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

### Is Magnetometer / Gaussmeter free?

Magnetometer / Gaussmeter costs $0.99, with no in-app purchases.

### Which has better reviews, Pipe Trades Pro Calc or Magnetometer / Gaussmeter?

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

### Do Pipe Trades Pro Calc or Magnetometer / Gaussmeter have ads?

Neither Pipe Trades Pro Calc nor Magnetometer / Gaussmeter shows ads.

### Which is updated more often, Pipe Trades Pro Calc or Magnetometer / Gaussmeter?

Pipe Trades Pro Calc ships an update every 7 months, and Magnetometer / Gaussmeter every 40 months. Most recently, Pipe Trades Pro Calc was updated on November 12, 2026 and Magnetometer / Gaussmeter on November 11, 2026.

### Which is more popular, Pipe Trades Pro Calc or Magnetometer / Gaussmeter?

Pipe Trades Pro Calc currently peaks at #196 in the App Store charts, and Magnetometer / Gaussmeter at #185. Chart position reflects recent download velocity rather than total install base.

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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.*