# HVAC Pipe Sizer vs 龙嘉SCM供应商

The clearest difference is price: 龙嘉SCM供应商 at Free against HVAC Pipe Sizer's $6.99. 龙嘉SCM供应商 also leads on in-app purchases (none vs 1) and update cadence (every 4 months vs every 9 months). On ads and device support there is nothing between them.

龙嘉SCM供应商 is free to download; HVAC Pipe Sizer costs $6.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase. 龙嘉SCM供应商 asks for nothing beyond the download.

HVAC Pipe Sizer ships an update every 9 months, 龙嘉SCM供应商 every 4 months. The most recent releases landed on August 27, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | HVAC Pipe Sizer | 龙嘉SCM供应商 |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 17 MB | 35 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [文朗 梁](https://appshunter.io/developer/1293631579) |

## What reviewers say

### HVAC Pipe Sizer

[App page](https://appshunter.io/ios/app/hvac-pipe-sizer-steam/id336112747)

Quickly size steam pipe systems by inputting piping and steam properties. Includes a steam table calculator and HVAC equipment locator. Supports English and metric units.

**Highlights:** Steam pipe sizing, Steam table calculator, HVAC Equipment Locator, English/metric unit selection, Pipe fitting database, Slider controls for input

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HVAC Equipment Locator | $9.99 | one-time |


### 龙嘉SCM供应商

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Pipe Sizer free?

HVAC Pipe Sizer costs $6.99, and also offers in-app purchases.

### Is 龙嘉SCM供应商 free?

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

### Do HVAC Pipe Sizer or 龙嘉SCM供应商 have ads?

Neither HVAC Pipe Sizer nor 龙嘉SCM供应商 shows ads.

### Which is updated more often, HVAC Pipe Sizer or 龙嘉SCM供应商?

HVAC Pipe Sizer ships an update every 9 months, and 龙嘉SCM供应商 every 4 months. Most recently, HVAC Pipe Sizer was updated on August 27, 2026 and 龙嘉SCM供应商 on September 17, 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.*