BITZER REFRIGERANT RULER vs Copeland PT Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BITZER REFRIGERANT RULER
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.
- 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
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The BITZER REFRIGERANT RULER enables easy and fast determination of refrigerant data. The app contains all common refrigerants, including key fluid properties, safety group information, global warming potential (GWP), ozone depletion potential (ODP), and information on choice of oil type for the compressor. Furthermore, additional information on refrigerants, links to relevant online documents and other information are displayed (under "More..." in the menu bar). The tool provides an intuitive user interface for easy and accurate temperature-to-pressure conversion, while allowing easy use and switching between different metric (SI) and imperial (IP) units (under "Settings"). // CURRENTLY AVAILABLE REFRIGERANTS // ▸ The app contains data and information on more than 100 natural and synthetic refrigerants, which can also be preselected by filter functions (under "Search"). ▸ For comparison purposes and also for practical use in service and operation of older existing systems, information on previously used refrigerants, which may have been affected by usage restrictions, are also provided. // MAIN FUNCTIONS // ▸ Search filters and favourites: Under the navigation item "Search" or via predetermined "Search filters" or manual entry in the text field the appropriate refrigerant can be found and, if necessary, added to the favourites by tapping the "star symbol". With a simple touch on the selected refrigerant, the slider for the pressure-temperature conversion is displayed. ▸ Ruler: By means of a slider, the values of pressure, dew and boiling (bubble) temperatures (temperature glide resulting from the difference) for the selected refrigerant can be determined. Pressure and temperature values can also be entered manually - either by tapping on the respective field or via the symbol "123". When installing the app overpressure values are preset. With this setting, the atmospheric pressure can be entered either manually on the upper ruler or via the "barometer symbol" to correct the pressure values. A change to absolute pressure values is possible under "Settings", the atmospheric pressure correction is then inactive. Further function: By tapping on the refrigerant name, direct access to "Search" (refrigerant list and search filters) is also possible. ▸ Settings: Under this menu all important parameters for the determination of the atmospheric pressure as well as for temperature and pressure values can be adjusted. Other functions allow for a change to default settings and a repeated display of the “Tutorials” in the ruler view. ▸ Automatic Barometer: The app offers the possibility to determine the current altitude above sea level and/or the actual atmospheric pressure to correct the corresponding dew and bubble temperatures in case of overpressure settings. Depending on the configuration, the analysis for the location in question is optionally carried out automatically via GPS or barometer if the corresponding terminal has the aforementioned sensors. Manually entering the atmospheric pressure or correction is possible as described under “Slider control”. ▸ Temperature / pressure: Temperature and pressure units can be freely selected and combined, if necessary, a mix of SI and IP units is possible as well. For overpressure (or negative pressure) bar (g) or psig / inHg can be selected. In the Setting psig / inHg displays the overpressure values in "psig" and the negative pressure values in "negative inHg" (e.g., -7.5 inHg). ▸ Further information on refrigerants: General and additional information can be found under the information symbol "i" in the header next to the refrigerant name. These include, for example, GWP and ODP values for the refrigerants, safety group, chemical composition or components in mixtures, CAS number, molecular weight, triple and boiling (bubble) points, critical temperature, critical pressure and information on the type of oil for the compressor.
Copeland PT Pro
This app offers on-the-go pressure and temperature conversions for refrigerants. Easily find saturated pressure based on temperature or saturated temperature based on pressure. It's a free tool for iPhone and iPad.
- Pressure and temperature conversions
- Refrigerant selection
- Temperature to pressure lookup
- Pressure to temperature lookup
- Supports Celsius, Fahrenheit, Bar, and Psig
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Copeland PT Pro(TM) application provides on-the-go access to pressure and temperature conversions. Select a refrigerant and enter a temperature (in C or F) and see what a saturated pressure (in Bar or Psig) will be. You can also enter a pressure and see what the saturated temperature is for that pressure. Download the Copeland PT Pro(TM) to your iPhone or iPad for FREE.
Screenshots
Verdict
The clearest difference is rating: BITZER REFRIGERANT RULER at 4.6 against Copeland PT Pro's 3.0. BITZER REFRIGERANT RULER also leads on ratings volume (1.1K vs 8) and review sentiment (64% vs 42%). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BITZER REFRIGERANT RULER holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: BITZER REFRIGERANT RULER has 1.1K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 64% of BITZER REFRIGERANT RULER's written reviews are positive against 42% of Copeland PT Pro's.
BITZER REFRIGERANT RULER ships an update every 4 months, Copeland PT Pro every 7 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | BITZER REFRIGERANT RULER | Copeland PT Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.1K ratings) — better | 3.0 (8 ratings) |
| Positive reviews | 63.6% of reviews — better | 41.7% of reviews |
| Number of ratings | 1.1K — better | 8 |
| Update frequency | Every 4 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 21 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | BITZER SE | Copeland LP |
Customer experience
BITZER REFRIGERANT RULER
Copeland PT Pro
Bugs and requests
BITZER REFRIGERANT RULER
Reported bugs
2 issues- Incorrect pressure-temperature relationships
- Inconsistent units (PSIA vs PSIG)
Requested features
3 requests- Altitude adjustment option
- Ability to filter or hide unwanted refrigerants
- Addition of more refrigerant trade names
Copeland PT Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
BITZER REFRIGERANT RULER
No in-app purchases
Copeland PT Pro
No in-app purchases





