# PipeFit Pro vs FlowLine Isometric

The clearest difference is rating: PipeFit Pro at 4.7 against FlowLine Isometric's 4.0. PipeFit Pro also leads on update cadence (weekly vs every 6 weeks) and iOS requirement (15.0 vs 26.0). FlowLine Isometric's advantage is in-app purchases (none vs 1) and ratings volume (12 vs 3). On price, ads and device support there is nothing between them.

Both are free to download. PipeFit Pro sells 1 one-off in-app purchase. FlowLine Isometric asks for nothing beyond the download.

PipeFit Pro holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 3 and 12 respectively.

PipeFit Pro ships an update weekly, FlowLine Isometric every 6 weeks. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | PipeFit Pro | FlowLine Isometric |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/pipefit-pro-pipe-calculator/id6758904461/reviews)** | [4.0 (12 ratings)](https://appshunter.io/ios/app/flowline-isometric/id6762237039/reviews) |
| Number of ratings | 3 | **12** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 26 MB | 23 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hung Vi Van](https://appshunter.io/developer/1846504927) | [Joshua Parkin](https://appshunter.io/developer/1495725832) |

## What reviewers say

### PipeFit Pro

[App page](https://appshunter.io/ios/app/pipefit-pro-pipe-calculator/id6758904461)

This utility app simplifies complex pipe calculations for professionals like pipefitters and plumbers. It offers instant offset calculations, a custom fraction keypad for imperial units, and mitered bend calculations, all usable offline and with gloves.

**Highlights:** Instant offset calculations, Custom fraction keypad, Mitered bend calculator, Glove-friendly interface, Dark mode, 100% offline capability

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PipeFit Pro Lifetime | $5.99 | one-time |


### FlowLine Isometric

[App page](https://appshunter.io/ios/app/flowline-isometric/id6762237039)

A professional tool for creating isometric piping diagrams. It allows pipefitters, plumbers, engineers, and contractors to quickly sketch and document pipe runs with a snap grid for precise isometric projection.

**Highlights:** Isometric projection drawing, Snap grid for precise lines, Quick sketching and documentation, On-site or office use, Focus on layout

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

**In-app purchases:** none


## Frequently asked questions

### Is PipeFit Pro free?

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

### Is FlowLine Isometric free?

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

### Which has better reviews, PipeFit Pro or FlowLine Isometric?

PipeFit Pro is rated higher. PipeFit Pro averages 4.7 out of 5 from 3 ratings, while FlowLine Isometric averages 4.0 from 12 ratings.

### Do PipeFit Pro or FlowLine Isometric have ads?

Neither PipeFit Pro nor FlowLine Isometric shows ads.

### Which is updated more often, PipeFit Pro or FlowLine Isometric?

PipeFit Pro ships an update weekly, and FlowLine Isometric every 6 weeks. Most recently, PipeFit Pro was updated on November 5, 2026 and FlowLine Isometric on November 9, 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.*