# HVAC & Sheet Metal Calculator vs Panel Planner

The clearest difference is price: HVAC & Sheet Metal Calculator at Free against Panel Planner's $0.99. HVAC & Sheet Metal Calculator also leads on ratings volume (89 vs 1) and device support (3 vs 1). Panel Planner's advantage is in-app purchases (none vs 2). On rating and ads there is nothing between them.

HVAC & Sheet Metal Calculator is free to download; Panel Planner costs $0.99 up front. HVAC & Sheet Metal Calculator sells 2 in-app purchases, starting at $3.99 per month. Panel Planner asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for HVAC & Sheet Metal Calculator against 5.0 for Panel Planner. That said, the two scores are not equally well evidenced: HVAC & Sheet Metal Calculator has 89 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | HVAC & Sheet Metal Calculator | Panel Planner |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.9 (89 ratings)](https://appshunter.io/ios/app/hvac-and-sheet-metal-calculator/id1554333784/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/panel-planner/id6777541153/reviews)** |
| Number of ratings | **89** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 23 months | — |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 37 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Calculated Industries](https://appshunter.io/developer/370406449) | [Jeremy Goldschmidt](https://appshunter.io/developer/6777541155) |

## What reviewers say

### HVAC & Sheet Metal Calculator

[App page](https://appshunter.io/ios/app/hvac-and-sheet-metal-calculator/id1554333784)

This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.

**Highlights:** Sheet metal calculations (radius, offset, wrapper length), Trigonometric functions (sine, cosine, tangent, arc), HVAC specific calculations (fan law, CFM, velocity), Construction math (dimensional conversions, slopes, rafters), Scientific and fraction calculations, Built-in context-sensitive help

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Full Access | $3.99 | per month |
| 1 Year Full Access | $24.99 | per year |


### Panel Planner

[App page](https://appshunter.io/ios/app/panel-planner/id6777541153)

Simulate and manage your home's electrical panel. Map circuits, track live loads, and plan new installations with realistic visualizations. Designed for clarity and privacy, it stores all data locally.

**Highlights:** Build custom electrical panels, Add and simulate device loads, Live current load calculations, Color-coded safety status indicators, Save up to 10 panel configurations, Offline and private data storage

**In-app purchases:** none


## Frequently asked questions

### Is HVAC & Sheet Metal Calculator free?

HVAC & Sheet Metal Calculator is free to download, with in-app purchases available.

### Is Panel Planner free?

Panel Planner costs $0.99, with no in-app purchases.

### Which has better reviews, HVAC & Sheet Metal Calculator or Panel Planner?

Panel Planner is rated higher. HVAC & Sheet Metal Calculator averages 4.9 out of 5 from 89 ratings, while Panel Planner averages 5.0 from 1 ratings.

### Do HVAC & Sheet Metal Calculator or Panel Planner have ads?

Neither HVAC & Sheet Metal Calculator nor Panel Planner shows ads.

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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.*