# LogBus vs HVAC/R AI Pro

The clearest difference is in-app purchases: LogBus at none against HVAC/R AI Pro's 2. LogBus also leads on update cadence (weekly vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HVAC/R AI Pro sells 2 in-app purchases, starting at $9.99 per month. LogBus asks for nothing beyond the download.

LogBus ships an update weekly, HVAC/R AI Pro every 5 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | LogBus | HVAC/R AI Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (5 ratings)](https://appshunter.io/ios/app/hvacr-ai-pro/id6747730624/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | — | Freemium |
| Size | 63 MB | 94 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Interface Mechanics LLC](https://appshunter.io/developer/1604160814) | [Cowboy G Industries LLC](https://appshunter.io/developer/1822667807) |

## What reviewers say

### LogBus

[App page](https://appshunter.io/ios/app/logbus/id1604160812)

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

**In-app purchases:** none


### HVAC/R AI Pro

[App page](https://appshunter.io/ios/app/hvacr-ai-pro/id6747730624)

This app provides HVAC and refrigeration technicians with AI-powered diagnostic assistance, duct sizing calculations, and job estimation tools. It offers step-by-step troubleshooting, airflow analysis, and photo-based equipment support to streamline service calls.

**Highlights:** AI Diagnostic Assistant, Step-by-step troubleshooting, Duct sizing calculations, Airflow analysis, Job estimate tool, Photo-based equipment support, Chat history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $9.99 | per month |
| Pro | $19.99 | per month |


## Frequently asked questions

### Is LogBus free?

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

### Is HVAC/R AI Pro free?

HVAC/R AI Pro is free to download, with in-app purchases available.

### Do LogBus or HVAC/R AI Pro have ads?

Neither LogBus nor HVAC/R AI Pro shows ads.

### Which is updated more often, LogBus or HVAC/R AI Pro?

LogBus ships an update weekly, and HVAC/R AI Pro every 5 weeks. Most recently, LogBus was updated on November 7, 2026 and HVAC/R AI Pro on October 30, 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.*