# Pipefitter_Pro vs Winlassie

The clearest difference is price: Winlassie at Free against Pipefitter_Pro's $10.99. Winlassie also leads on update cadence (every 2 weeks vs every 47 months) and iOS requirement (13.0 vs 15.0). Pipefitter_Pro's advantage is chart position (#186 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Winlassie is free to download; Pipefitter_Pro costs $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pipefitter_Pro ships an update every 47 months, Winlassie every 2 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Pipefitter_Pro | Winlassie |
| --- | --- | --- |
| Price | $10.99 | **Free** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/pipefitter-pro/id6444051340/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#186** | — |
| Size | 50 MB | 44 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tomasz Szymanski](https://appshunter.io/developer/1043963851) | [Imagine Human](https://appshunter.io/developer/1834881719) |

## What reviewers say

### Pipefitter_Pro

[App page](https://appshunter.io/ios/app/pipefitter-pro/id6444051340)

**Currently charting:** #186 Top Paid · Productivity (US App Store)

This app is a pipe calculation tool that helps determine offsets, angles, and pipe segments. It offers a visual representation of angles and a slider for quick offset dimensioning, with dynamic angle updates. Future updates aim to include 3D angle calculations.

**Highlights:** Calculate pipe offsets, Determine angles, Calculate pipe segments, Visual angle representation, Slider for offset dimensioning, Dynamic angle updates

**Features:** Vision Pro support

**In-app purchases:** none


### Winlassie

[App page](https://appshunter.io/ios/app/winlassie/id6751401533)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pipefitter_Pro free?

Pipefitter_Pro costs $10.99, with no in-app purchases.

### Is Winlassie free?

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

### Do Pipefitter_Pro or Winlassie have ads?

Neither Pipefitter_Pro nor Winlassie shows ads.

### Which is updated more often, Pipefitter_Pro or Winlassie?

Pipefitter_Pro ships an update every 47 months, and Winlassie every 2 weeks. Most recently, Pipefitter_Pro was updated on October 15, 2026 and Winlassie on October 14, 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.*