# BITZER REFRIGERANT RULER

> Determine refrigerant data

Canonical page: [https://chrome-stats.com/d/id373683792](https://chrome-stats.com/d/id373683792)

## Overview

- **ID:** `id373683792`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** BITZER SE
- **Category:** Reference
- **Rating:** 4.60 / 5 (1,123 ratings)
- **Version:** 3.4.0
- **Last updated:** 2023-01-24
- **First published:** 2010-05-27
- **Size:** 21 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/bitzer-refrigerant-ruler/id373683792)
- **Website:** [https://www.bitzer.de/us/us/](https://www.bitzer.de/us/us/)
- **Privacy policy:** [https://www.bitzer.de/us/us/privacy/](https://www.bitzer.de/us/us/privacy/)

## Description

The BITZER REFRIGERANT RULER provides quick access to refrigerant data, including 100+ natural and synthetic refrigerants, key properties, GWP, ODP, safety groups, CAS numbers, molecular weights, and oil type for compressors. It also links to official documents and additional information via the More... menu, all in one handy tool.

Its intuitive ruler supports precise temperature-to-pressure conversions with seamless switching between SI and IP units, manual entry, and presets. Features include search filters, favorites, automatic barometer/altitude corrections (via GPS or barometer when available), and a Settings area to tailor units, display, and tutorials.

## Rankings

- #52,627 — Overall

## Review summary

Reviews praise the Bitzer Refrigerant Ruler for its broad PT charts and classroom value, plus quick pressure–temperature conversions. However, multiple reports cite persistent loading/opening problems, a disruptive redesign that worsened usability, data accuracy concerns in PT charts, and poor filtering of refrigerants. A common call is to revert to the old format and restore essential features, as reliability and ease of use appear to be the app's biggest current drawbacks.

### Pros

- Comprehensive and useful refrigerant PT charts and data.
- Valuable for teaching PT charts in HVAC classes.
- Helps with quick pressure–temperature conversions for troubleshooting.

### Cons

- App frequently fails to load or respond, with slow performance and opening issues.
- Major redesign/format change reduced usability and intuitiveness; users want the old format back.
- PT data/relations sometimes inaccurate after updates (charts for some refrigerants off; PSIA labeling can cause confusion).
- Feature/functionality gaps: inability to filter out unused refrigerants reliably and issues with preserving user selections.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id373683792)