# HVAC Pipe Sizer vs Pipe Sizer

The clearest difference is price: HVAC Pipe Sizer at $4.99 against Pipe Sizer's $12.99. HVAC Pipe Sizer also leads on update cadence (every 6 months vs every 17 months) and chart position (#181 vs unranked). Pipe Sizer's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 71%). On ads, monetization model, device support and iOS requirement there is nothing between them.

HVAC Pipe Sizer costs $4.99 and Pipe Sizer $12.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase. Pipe Sizer asks for nothing beyond the download.

HVAC Pipe Sizer ships an update every 6 months, Pipe Sizer every 17 months. The most recent releases landed on September 9, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | HVAC Pipe Sizer | Pipe Sizer |
| --- | --- | --- |
| Price | **$4.99** | $12.99 |
| Rating | — | **[4.8 (10 ratings)](https://appshunter.io/ios/app/pipe-sizer-water/id1316033381/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 17 months |
| Monetization | Paid | Paid |
| Best chart rank | **#181** | — |
| Size | 16 MB | 2 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [Pheinex, LLC](https://appshunter.io/developer/996932317) |

## What reviewers say

### HVAC Pipe Sizer

[App page](https://appshunter.io/ios/app/hvac-pipe-sizer-liquid/id325069065)

**Currently charting:** #181 Top Paid · Productivity (US App Store)

Calculate pipe sizes for liquid systems, including hot and chilled water. Input flow rate, head loss, diameter, or velocity to determine other properties. Supports various liquids, pipe materials, and fittings, with English or metric units.

**Highlights:** Liquid pipe sizing, Hydronic system calculations, Input flow, head loss, diameter, or velocity, Calculate fluid flow and head loss, Supports various liquids and pipe materials, English and metric unit options, Email results

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

**In-app purchases (1)**

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


### Pipe Sizer

[App page](https://appshunter.io/ios/app/pipe-sizer-water/id1316033381)

This app helps water piping system engineers and designers quickly and accurately design and analyze piping systems. It offers direct input for flow, friction, or velocity, with live calculation updates and support for various units and pipe materials.

**Highlights:** Quickly size new piping systems, Analyze existing piping systems, Direct input for flow, friction, or velocity, Live calculation updates, Supports SI and IP units, Works with steel, copper, and PVC pipes, Includes fluid data for water and glycols

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Pipe Sizer free?

HVAC Pipe Sizer costs $4.99, and also offers in-app purchases.

### Is Pipe Sizer free?

Pipe Sizer costs $12.99, with no in-app purchases.

### Do HVAC Pipe Sizer or Pipe Sizer have ads?

Neither HVAC Pipe Sizer nor Pipe Sizer shows ads.

### Which is updated more often, HVAC Pipe Sizer or Pipe Sizer?

HVAC Pipe Sizer ships an update every 6 months, and Pipe Sizer every 17 months. Most recently, HVAC Pipe Sizer was updated on September 9, 2026 and Pipe Sizer on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*