# Ref Tools vs Rheem

The clearest difference is rating: Rheem at 4.6 against Ref Tools's 3.9. Rheem also leads on ratings volume (1.7K vs 52). Ref Tools's advantage is review sentiment (58% vs 43%) and device support (3 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Rheem holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Rheem has 1.7K ratings behind it against 52, so its average is the more settled of the two. Written reviews complicate that: 58% of Ref Tools's written reviews are positive against 43% of Rheem's, so the app with the better star average is not the one people write more warmly about.

Ref Tools ships an update every 6 weeks, Rheem monthly. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Ref Tools | Rheem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (52 ratings)](https://appshunter.io/ios/app/ref-tools/id472312541/reviews) | **[4.6 (1.7K ratings)](https://appshunter.io/ios/app/rheem/id1604626837/reviews)** |
| Number of ratings | 52 | **1.7K** |
| Positive reviews | **57.6% of reviews** | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | Free |
| Size | 98 MB | 109 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Danfoss A/S](https://appshunter.io/developer/423984644) | [Rheem Manufacturing Company](https://appshunter.io/developer/853793269) |

## 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


### Rheem

[App page](https://appshunter.io/ios/app/rheem/id1604626837)

This app streamlines HVAC installation and service for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with comprehensive support for product information, warranty tracking, and locating resources.

**Highlights:** Bluetooth setup and troubleshooting, System monitoring and status checks, Alarm diagnosis and history, Parts replacement guidance, Access to manuals and tech sheets, Warranty tracking and certificate sharing, Retailer and distributor locator

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ref Tools free?

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

### Is Rheem free?

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

### Which has better reviews, Ref Tools or Rheem?

Rheem is rated higher. Ref Tools averages 3.9 out of 5 from 52 ratings, while Rheem averages 4.6 from 1.7K ratings.

### Do Ref Tools or Rheem have ads?

Neither Ref Tools nor Rheem shows ads.

### Which is updated more often, Ref Tools or Rheem?

Ref Tools ships an update every 6 weeks, and Rheem monthly. Most recently, Ref Tools was updated on September 19, 2026 and Rheem on September 24, 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.*