# RSL

> Refrigerant calculator and information tool for RS series products. (iPhone/iPad app by Nick Poole.)

- Source: https://appshunter.io/ios/app/rsl/id430840160 (this page in markdown: same URL + `.md`)
- Developer: [Nick Poole](https://appshunter.io/developer/430840163)
- Category: Reference
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 13 MB
- Languages: American English
- Released: 2011-04-14
- Data updated: 2026-06-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rsl/id430840160/reviews.md

## What is RSL?

RSL is pleased to offer an iPhone application for the RS series of refrigerant products. The app provides the following:

Pressure Temperature Calculator for the RS series of refrigerants
Retrofit procedures for the RS series of refrigerants
Information about the RS series of refrigerants

## Key features

- Pressure Temperature Calculator
- Retrofit Procedures
- Refrigerant Information
- RS Series Specific


## Frequently asked questions about RSL

### What is RSL?

RSL is an iPhone application designed to provide a pressure-temperature calculator, retrofit procedures, and information specifically for the RS series of refrigerants.

### Is RSL free to download?

Yes, RSL is available for free on the App Store. There are no in-app purchases or advertisements within the application.

### What refrigerants does RSL support?

RSL is specifically designed for the RS series of refrigerants, offering specialized tools and information for this product line.

### What devices is RSL compatible with?

RSL is compatible with iPhone, iPad, and iPod Touch devices. It requires iOS 4.0 or later.

### How often is RSL updated?

The latest version of RSL, 3.1, was released on March 27, 2021. Updates are provided by the developer, Nick Poole.

### What is the age rating for RSL?

RSL has an age rating of 4+, making it suitable for a wide range of users. It is a utility application with no mature content.

### Where can I find information on retrofitting refrigerants with RSL?

RSL includes specific retrofit procedures for the RS series of refrigerants, providing guidance for technicians performing these tasks.

### What is the user rating for RSL?

RSL has received an excellent rating of 5.0 stars from one review, indicating high user satisfaction with its functionality.

## Version history (last 5 releases)

### 3.1 — 2021-03-27

Bug fix: US retrofit instructions now shown correctly.

### 3.0 — 2020-11-25

The RSL app has been updated to include a pressure temperature calculator for the RS series of refrigerants.
The new, very low GWP, A1 R404A replacement - RS-51 - has been included.
The new, very low GWP, A1 R410A replacement - RS-53 - has also been included.

### 2.1 — 2016-08-19

Added USA naming for RS-70 (known as RS-44b in the USA).

### 2.0 — 2016-04-21

Added new refrigerants: RS-50 and RS-70
Now supports iPad and iPad Pro
Updated to support latest version of iOS

### 1.1 — 2011-05-12

Spelling fixes.
Contact details for US.

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| --- | --- | --- | --- |
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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*