# BITZER REFRIGERANT RULER vs Cardiff Gov

The clearest difference is review sentiment: BITZER REFRIGERANT RULER at 64% against Cardiff Gov's 36%. BITZER REFRIGERANT RULER also leads on iOS requirement (13.0 vs 15.0). 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.

BITZER REFRIGERANT RULER ships an update every 4 months, Cardiff Gov every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | BITZER REFRIGERANT RULER | Cardiff Gov |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.1K ratings)](https://appshunter.io/ios/app/bitzer-refrigerant-ruler/id373683792/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | **63.6% of reviews** | 35.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 21 MB | 121 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BITZER SE](https://appshunter.io/developer/1224090796) | [Cyngor Caerdydd Cardiff Council](https://appshunter.io/developer/1299616865) |

## What reviewers say

### BITZER REFRIGERANT RULER

[App page](https://appshunter.io/ios/app/bitzer-refrigerant-ruler/id373683792)

This tool quickly determines refrigerant data, including properties, safety groups, GWP, and ODP. It offers intuitive temperature-to-pressure conversion and supports both metric and imperial units. Access detailed information and links to online resources for over 100 refrigerants.

**Highlights:** Refrigerant data lookup, Temperature-to-pressure conversion, Metric and imperial unit support, Over 100 refrigerants, Oil type information, GWP and ODP data, Search filters and favorites

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

**In-app purchases:** none

**What reviewers like**

- 👍 Comprehensive refrigerant list
- 🚀 Efficient and easy to use
- 💡 Helpful for HVAC students and professionals

**What reviewers complain about**

- 🐛 Accuracy issues with some refrigerants
- 🔧 Confusing layout and navigation after recent update
- 🔋 Crashes or freezes on some devices

**Reported bugs**

- Incorrect pressure-temperature relationships
- Inconsistent units (PSIA vs PSIG)

**Requested features**

- Altitude adjustment option
- Ability to filter or hide unwanted refrigerants
- Addition of more refrigerant trade names


### Cardiff Gov

[App page](https://appshunter.io/ios/app/cardiff-gov/id1377548580)

Connect with Cardiff Council services for waste collection, reporting issues, managing council tax, and booking appointments. Set reminders for important tasks and access a full list of available services online.

**Highlights:** Check recycling and waste collections, Report a problem, Manage council tax, Book recycling centre visits, Set reminders

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

**In-app purchases:** none


## Frequently asked questions

### Is BITZER REFRIGERANT RULER free?

BITZER REFRIGERANT RULER is free to download, with no in-app purchases.

### Is Cardiff Gov free?

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

### Do BITZER REFRIGERANT RULER or Cardiff Gov have ads?

Neither BITZER REFRIGERANT RULER nor Cardiff Gov shows ads.

### Which is updated more often, BITZER REFRIGERANT RULER or Cardiff Gov?

BITZER REFRIGERANT RULER ships an update every 4 months, and Cardiff Gov every 3 months. Most recently, BITZER REFRIGERANT RULER was updated on November 6, 2026 and Cardiff Gov on November 2, 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.*