# HVAC Master AI vs HVACsim

The clearest difference is rating: HVAC Master AI at 5.0 against HVACsim's 2.6. HVAC Master AI also leads on update cadence (every 11 days vs every 2 months). HVACsim's advantage is ratings volume (10 vs 3) and iOS requirement (13.4 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. HVAC Master AI sells 1 in-app purchase, starting at $4.99 per month and HVACsim sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HVAC Master AI holds the better App Store score, 5.0 against 2.6. Both are backed by a comparable volume of ratings — 3 and 10 respectively.

HVAC Master AI ships an update every 11 days, HVACsim every 2 months. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | HVAC Master AI | HVACsim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hvac-master-ai/id6738960643/reviews)** | [2.6 (10 ratings)](https://appshunter.io/ios/app/hvacsim/id6740935191/reviews) |
| Number of ratings | 3 | **10** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 159 MB | 20 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [alexis atilano](https://appshunter.io/developer/1783149667) | [Nauman Innovation Group LLC](https://appshunter.io/developer/1764933586) |

## What reviewers say

### HVAC Master AI

[App page](https://appshunter.io/ios/app/hvac-master-ai/id6738960643)

This mobile assistant helps HVAC technicians diagnose, repair, and optimize heating, ventilation, and air conditioning systems. It provides expert advice, refrigerant information, EPA 608 guidance, and heat pump insights for quick access to solutions.

**Highlights:** Comprehensive HVAC troubleshooting advice, Refrigerant expertise, EPA 608 compliance guidance, Heat pump system insights, Quick access to solutions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly  Subscription | $4.99 | per month |


### HVACsim

[App page](https://appshunter.io/ios/app/hvacsim/id6740935191)

This app offers interactive learning and real-world data analysis to help HVAC professionals diagnose and troubleshoot systems. It provides personalized training plans, skill assessments, and team management tools for contractors.

**Highlights:** Technical Knowledge Evaluator, Individualized Learning Plans, Real-World Data Analysis, Team Management Tools, Continuous Learning Library

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $29.99 | one-time |


## Frequently asked questions

### Is HVAC Master AI free?

HVAC Master AI is free to download, with in-app purchases available.

### Is HVACsim free?

HVACsim is free to download, with in-app purchases available.

### Which has better reviews, HVAC Master AI or HVACsim?

HVAC Master AI is rated higher. HVAC Master AI averages 5.0 out of 5 from 3 ratings, while HVACsim averages 2.6 from 10 ratings.

### Do HVAC Master AI or HVACsim have ads?

Neither HVAC Master AI nor HVACsim shows ads.

### Which is updated more often, HVAC Master AI or HVACsim?

HVAC Master AI ships an update every 11 days, and HVACsim every 2 months. Most recently, HVAC Master AI was updated on October 16, 2026 and HVACsim on October 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.*