# Pipe Trades Pro Calc vs µMagnetometer

The clearest difference is price: Pipe Trades Pro Calc at Free against µMagnetometer's $1.99. Pipe Trades Pro Calc also leads on rating (4.8 vs 4.4) and ratings volume (4.3K vs 67). µMagnetometer's advantage is in-app purchases (none vs 6) and update cadence (every 4 months vs every 7 months). On ads and device support there is nothing between them.

Pipe Trades Pro Calc is free to download; µMagnetometer costs $1.99 up front. Pipe Trades Pro Calc sells 2 in-app purchases, starting at $4.99 per month. µMagnetometer asks for nothing beyond the download.

Pipe Trades Pro Calc holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Pipe Trades Pro Calc has 4.3K ratings behind it against 67, so its average is the more settled of the two. Written reviews point the same way: 42% of Pipe Trades Pro Calc's written reviews are positive against 23% of µMagnetometer's.

Pipe Trades Pro Calc ships an update every 7 months, µMagnetometer every 4 months. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Pipe Trades Pro Calc | µMagnetometer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (4.3K ratings)](https://appshunter.io/ios/app/pipe-trades-pro-calc/id596142100/reviews)** | [4.4 (67 ratings)](https://appshunter.io/ios/app/magnetometer/id1482576105/reviews) |
| Number of ratings | **4.3K** | 67 |
| Positive reviews | **42.5% of reviews** | 23.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#191** | — |
| Size | 51 MB | 15 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Dmytro Hrebeniuk](https://appshunter.io/developer/1458758581) |

## What reviewers say

### Pipe Trades Pro Calc

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

**Currently charting:** #191 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


### µMagnetometer

[App page](https://appshunter.io/ios/app/magnetometer/id1482576105)

Measures the strength of the magnetic field around you using your device's magnetometer. Requires Location Services to be enabled on iOS. Provides microtesla readings for nearby magnetic fields.

**Highlights:** Measures magnetic field strength, Displays readings in microteslas, Utilizes device magnetometer, Requires Location Services (iOS)

**Features:** 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 µMagnetometer free?

µMagnetometer costs $1.99, with no in-app purchases.

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

Pipe Trades Pro Calc is rated higher. Pipe Trades Pro Calc averages 4.8 out of 5 from 4.3K ratings, while µMagnetometer averages 4.4 from 67 ratings.

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

Neither Pipe Trades Pro Calc nor µMagnetometer shows ads.

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

Pipe Trades Pro Calc ships an update every 7 months, and µMagnetometer every 4 months. Most recently, Pipe Trades Pro Calc was updated on September 25, 2026 and µMagnetometer on September 10, 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.*