# 龙嘉SCM供应商 vs Pipe Flow Gas Pipe Diameter

The clearest difference is in-app purchases: 龙嘉SCM供应商 at none against Pipe Flow Gas Pipe Diameter's 1. Pipe Flow Gas Pipe Diameter's advantage is update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Pipe Flow Gas Pipe Diameter sells 1 one-off in-app purchase. 龙嘉SCM供应商 asks for nothing beyond the download.

龙嘉SCM供应商 ships an update every 4 months, Pipe Flow Gas Pipe Diameter fortnightly. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 龙嘉SCM供应商 | Pipe Flow Gas Pipe Diameter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/pipe-flow-gas-pipe-diameter/id1582795941/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 35 MB | 67 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [文朗 梁](https://appshunter.io/developer/1293631579) | [Pipe Flow Software](https://appshunter.io/developer/1193064957) |

## What reviewers say

### 龙嘉SCM供应商

[App page](https://appshunter.io/ios/app/scm/id1459545200)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pipe Flow Gas Pipe Diameter

[App page](https://appshunter.io/ios/app/pipe-flow-gas-pipe-diameter/id1582795941)

This utility app calculates the minimum internal pipe diameter for gas flow based on flow rate and pressure loss. It supports various calculation equations and offers comprehensive results with customizable units and databases for materials, fluids, and fittings.

**Highlights:** Calculates minimum internal pipe diameter, Supports multiple flow equations (AGA, Weymouth, etc.), Handles gas density changes with Ideal Gas Law, Includes databases for gases, pipe materials, and fittings, User-definable custom data, Imperial and Metric unit support, Generates Excel and PDF reports

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipe Flow Gas Pipe Diameter | $4.99 | one-time |


## Frequently asked questions

### Is 龙嘉SCM供应商 free?

龙嘉SCM供应商 is free to download, with no in-app purchases.

### Is Pipe Flow Gas Pipe Diameter free?

Pipe Flow Gas Pipe Diameter is free to download, with in-app purchases available.

### Do 龙嘉SCM供应商 or Pipe Flow Gas Pipe Diameter have ads?

Neither 龙嘉SCM供应商 nor Pipe Flow Gas Pipe Diameter shows ads.

### Which is updated more often, 龙嘉SCM供应商 or Pipe Flow Gas Pipe Diameter?

龙嘉SCM供应商 ships an update every 4 months, and Pipe Flow Gas Pipe Diameter fortnightly. Most recently, 龙嘉SCM供应商 was updated on September 17, 2026 and Pipe Flow Gas Pipe Diameter on September 21, 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.*