# Ref Tools vs Daikin Service

The clearest difference is rating: Ref Tools at 3.9 against Daikin Service's 3.6. Ref Tools also leads on ratings volume (52 vs 11). On price, review sentiment, update cadence and ads there is nothing between them.

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

Ref Tools holds the better App Store score, 3.9 against 3.6. Both are backed by a comparable volume of ratings — 52 and 11 respectively. Written reviews point the same way: 58% of Ref Tools's written reviews are positive against 51% of Daikin Service's.

Ref Tools ships an update every 6 weeks, Daikin Service monthly. The most recent releases landed on September 19, 2026 and June 20, 2026 respectively.

## The numbers

| Metric | Ref Tools | Daikin Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (52 ratings)](https://appshunter.io/ios/app/ref-tools/id472312541/reviews)** | [3.6 (11 ratings)](https://appshunter.io/ios/app/daikin-service/id571282882/reviews) |
| Number of ratings | **52** | 11 |
| Positive reviews | **57.6% of reviews** | 50.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 98 MB | 111 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Daikin Airconditioning UK Ltd](https://appshunter.io/developer/482466505) |

## What reviewers say

### Ref Tools

[App page](https://appshunter.io/ios/app/ref-tools/id472312541)

This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.

**Highlights:** Refrigerant Slider for P/T calculations, Solenoid valve coil testing tool, Refrigeration system troubleshooting guide, Product data finder, Spare parts ordering, Low-GWP refrigerant comparison, TXV Superheat optimization, Educational podcasts

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Ref Tools free?

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

### Is Daikin Service free?

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

### Which has better reviews, Ref Tools or Daikin Service?

Ref Tools is rated higher. Ref Tools averages 3.9 out of 5 from 52 ratings, while Daikin Service averages 3.6 from 11 ratings.

### Do Ref Tools or Daikin Service have ads?

Neither Ref Tools nor Daikin Service shows ads.

### Which is updated more often, Ref Tools or Daikin Service?

Ref Tools ships an update every 6 weeks, and Daikin Service monthly. Most recently, Ref Tools was updated on September 19, 2026 and Daikin Service on June 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.*