# Daikin Service vs HVACsim

The clearest difference is rating: Daikin Service at 3.6 against HVACsim's 2.6. Daikin Service also leads on in-app purchases (none vs 1). HVACsim's advantage is iOS requirement (13.4 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. HVACsim sells 1 one-off in-app purchase. Daikin Service asks for nothing beyond the download.

Daikin Service holds the better App Store score, 3.6 against 2.6. Both are backed by a comparable volume of ratings — 11 and 10 respectively.

Daikin Service ships an update monthly, HVACsim every 2 months. The most recent releases landed on June 20, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Daikin Service | HVACsim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (11 ratings)](https://appshunter.io/ios/app/daikin-service/id571282882/reviews)** | [2.6 (10 ratings)](https://appshunter.io/ios/app/hvacsim/id6740935191/reviews) |
| Number of ratings | **11** | 10 |
| Positive reviews | 50.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 111 MB | 20 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daikin Airconditioning UK Ltd](https://appshunter.io/developer/482466505) | [Nauman Innovation Group LLC](https://appshunter.io/developer/1764933586) |

## What reviewers say

### Daikin Service

[App page](https://appshunter.io/ios/app/daikin-service/id571282882)

This app assists service engineers in the air conditioning industry with Daikin VRV, Altherma, Split, and Sky Air equipment. It provides tools for fault finding, including fault codes, refrigerant calculations, and diagnostic checks. The application also supports outdoor unit settings and operational procedures.

**Highlights:** Fault code lookup, Additional charge calculations, PCB dip switch settings, Pressure and temperature checks, Outdoor unit field settings, Refrigerant recovery settings, Emergency modes

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Daikin Service free?

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

### Is HVACsim free?

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

### Which has better reviews, Daikin Service or HVACsim?

Daikin Service is rated higher. Daikin Service averages 3.6 out of 5 from 11 ratings, while HVACsim averages 2.6 from 10 ratings.

### Do Daikin Service or HVACsim have ads?

Neither Daikin Service nor HVACsim shows ads.

### Which is updated more often, Daikin Service or HVACsim?

Daikin Service ships an update monthly, and HVACsim every 2 months. Most recently, Daikin Service was updated on June 20, 2026 and HVACsim on September 20, 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.*