# Pipe Trades Pro Calc vs Flat Pattern Pro

The clearest difference is price: Pipe Trades Pro Calc at Free against Flat Pattern Pro's $9.99. Pipe Trades Pro Calc also leads on review sentiment (43% vs 0%) and update cadence (every 7 months vs every 42 months). Flat Pattern Pro's advantage is in-app purchases (none vs 6). On ads, chart position and device support there is nothing between them.

Pipe Trades Pro Calc is free to download; Flat Pattern Pro costs $9.99 up front. Pipe Trades Pro Calc sells 2 in-app purchases, starting at $4.99 per month. Flat Pattern Pro asks for nothing beyond the download.

Pipe Trades Pro Calc ships an update every 7 months, Flat Pattern Pro every 42 months. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Pipe Trades Pro Calc | Flat Pattern Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.8 (4.3K ratings)](https://appshunter.io/ios/app/pipe-trades-pro-calc/id596142100/reviews)** | — |
| Number of ratings | **4.3K** | — |
| Positive reviews | **42.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 42 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#176** | #191 |
| Size | 51 MB | 2 MB |
| Requires iOS | **14.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Imran Pinjara](https://appshunter.io/developer/1484488781) |

## What reviewers say

### Pipe Trades Pro Calc

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

**Currently charting:** #176 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


### Flat Pattern Pro

[App page](https://appshunter.io/ios/app/flat-pattern-pro/id1489799915)

**Currently charting:** #191 Top Paid · Utilities (US App Store)

This app provides a comprehensive tool for calculating and developing fabrication layouts for a wide range of shapes. It helps minimize fabrication time and increase accuracy by offering user-friendly tools for complex designs.

**Highlights:** Fabrication layout development, Supports numerous shapes (pipes, cones, pyramids, spheres), Minimizes fabrication time, Increases accuracy, Offline functionality, Ad-free experience

**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 Flat Pattern Pro free?

Flat Pattern Pro costs $9.99, with no in-app purchases.

### Do Pipe Trades Pro Calc or Flat Pattern Pro have ads?

Neither Pipe Trades Pro Calc nor Flat Pattern Pro shows ads.

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

Pipe Trades Pro Calc ships an update every 7 months, and Flat Pattern Pro every 42 months. Most recently, Pipe Trades Pro Calc was updated on October 15, 2026 and Flat Pattern Pro on October 1, 2026.

### Which is more popular, Pipe Trades Pro Calc or Flat Pattern Pro?

Pipe Trades Pro Calc currently peaks at #176 in the App Store charts, and Flat Pattern Pro at #191. 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.*