# HVAC Pipe Sizer vs Agtrinsic

The clearest difference is price: Agtrinsic at Free against HVAC Pipe Sizer's $7.99. Agtrinsic also leads on in-app purchases (none vs 1) and update cadence (weekly vs every 10 months). On ads, device support and iOS requirement there is nothing between them.

Agtrinsic is free to download; HVAC Pipe Sizer costs $7.99 up front. HVAC Pipe Sizer sells 1 one-off in-app purchase. Agtrinsic asks for nothing beyond the download.

HVAC Pipe Sizer ships an update every 10 months, Agtrinsic weekly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | HVAC Pipe Sizer | Agtrinsic |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-plus/id342239204/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Weekly** |
| Monetization | Paid | — |
| Size | 1 MB | 144 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Carmel Software Corporation](https://appshunter.io/developer/317970398) | [Intelinair](https://appshunter.io/developer/1442354522) |

## What reviewers say

### HVAC Pipe Sizer

[App page](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-plus/id342239204)

Calculate gas piping systems for low and high pressure. Input flow, pressure, or diameter to find pipe sizes, velocity, and equivalent lengths. Supports English and metric units, with extensive pipe fitting data.

**Highlights:** Low and high pressure gas pipe sizing, Calculate flow, pressure drop, diameter, and velocity, Universal app for iPhone and iPad, English and metric unit support, Built-in pipe fitting equivalent length tables, Slider controls for quick adjustments

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

**In-app purchases (1)**

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


### Agtrinsic

[App page](https://appshunter.io/ios/app/agtrinsic/id1664681960)

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

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Pipe Sizer free?

HVAC Pipe Sizer costs $7.99, and also offers in-app purchases.

### Is Agtrinsic free?

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

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

Neither HVAC Pipe Sizer nor Agtrinsic shows ads.

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

HVAC Pipe Sizer ships an update every 10 months, and Agtrinsic weekly. Most recently, HVAC Pipe Sizer was updated on November 1, 2026 and Agtrinsic on November 7, 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.*