# Ruud vs CaptiveAire Toolbox

The clearest difference is rating: CaptiveAire Toolbox at 5.0 against Ruud's 4.6. CaptiveAire Toolbox also leads on update cadence (every 6 days vs monthly). Ruud's advantage is ratings volume (1.1K vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CaptiveAire Toolbox holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Ruud has 1.1K ratings behind it against 1, so its average is the more settled of the two.

Ruud ships an update monthly, CaptiveAire Toolbox every 6 days. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Ruud | CaptiveAire Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (1.1K ratings)](https://appshunter.io/ios/app/ruud/id1608918835/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/captiveaire-toolbox/id6765656560/reviews)** |
| Number of ratings | **1.1K** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Free | Free |
| Size | 112 MB | 71 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Rheem Manufacturing Company](https://appshunter.io/developer/853793269) | [CaptiveAire Systems, Inc.](https://appshunter.io/developer/1896026735) |

## What reviewers say

### Ruud

[App page](https://appshunter.io/ios/app/ruud/id1608918835)

This app streamlines HVAC installation, service, and support for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with access to product information, warranty tracking, and dealer locators.

**Highlights:** Bluetooth setup and troubleshooting, System operating parameter monitoring, Alarm diagnosis and history, Access installation instructions and manuals, Track warranty information, Locate retailers and distributors, Find rebate and financing information

**Features:** Vision Pro support

**In-app purchases:** none


### CaptiveAire Toolbox

[App page](https://appshunter.io/ios/app/captiveaire-toolbox/id6765656560)

This app provides over 40 HVAC and building-systems engineering calculators. It's designed for field use, offering standard industry formulas for cooling, heating, ventilation, electrical sizing, and more. Access detailed formula definitions and reference data.

**Highlights:** 40+ HVAC engineering calculators, Cooling and heating load calculations, Ventilation and airflow tools, Electrical sizing and motor circuits, Duct and piping pressure drop, Reference data and psychrometric chart

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

**In-app purchases:** none


## Frequently asked questions

### Is Ruud free?

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

### Is CaptiveAire Toolbox free?

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

### Which has better reviews, Ruud or CaptiveAire Toolbox?

CaptiveAire Toolbox is rated higher. Ruud averages 4.6 out of 5 from 1.1K ratings, while CaptiveAire Toolbox averages 5.0 from 1 ratings.

### Do Ruud or CaptiveAire Toolbox have ads?

Neither Ruud nor CaptiveAire Toolbox shows ads.

### Which is updated more often, Ruud or CaptiveAire Toolbox?

Ruud ships an update monthly, and CaptiveAire Toolbox every 6 days. Most recently, Ruud was updated on October 18, 2026 and CaptiveAire Toolbox on October 5, 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.*