myCoolblue vs PT Ductulator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
myCoolblue
This simulation tool helps estimate annual energy needs for cooling and dehumidifying ventilation system supply air. It allows for early project planning by calculating potential energy savings from indirect evaporative cooling based on local weather data.
- Energy use simulation for evaporative cooling
- Estimate annual cooling and dehumidification energy
- Calculate potential energy savings
- Utilize location-specific weather data
- Export results via email or AirPrint
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The myCoolblue app is a powerful simulation tool that enables you to calculate the annual amount of energy required to cool and dehumidify the supply air to a ventilation system at a particular site. This means that you can estimate the expected energy-related benefits of employing indirect evaporative cooling in a ventilation system, based on actual climatological conditions, as early as the planning stage of a project. This in turn enables you to optimize the system’s components early on to ensure that it is as efficient as possible. Energy use simulation for indirect evaporative cooling with the myCoolblue app from Condair Use the myCoolblue simulation tool from Condair to determine how much energy you can save by using an indirect evaporative cooling system (Condair ME). To represent your HVAC system’s cooling mode (cooling of external air to supply air) in the calculation program, simply enter the relevant planning parameters. Savings can be calculated precisely before the system is even built The myCoolblue mobile app can simulate the energy characteristics of your planned system, and calculate the potential savings from evaporative cooling in advance. Energy savings can thus be evaluated in terms of concrete figures. Use of location-specific weather data The energy use simulation is based on hour-by-hour meteorological reference data for the selected location. Test reference year values from the German Weather Service and the METEONORM global meteorological database are available for more than 300 locations around the world. E-mail and AirPrint Function The h,x diagram can send the results of a calculation by e-mail, or print them out directly with the help of an air print printer. www.condair.de
PT Ductulator
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This is the easiest duct sizing calculator you’ll ever use. PT Ductulator is a simple, modern duct sizing tool for HVAC technicians, designers, and students. No spinning wheels, no cluttered screens—just clean inputs and instant, easy-to-read results. Whether you’re on a rooftop, in an attic, or at the design desk, Ductulator helps you make fast, confident decisions about duct size, airflow, and comfort. Why it feels so easy - Straightforward layout – Type in what you know, see what you need. No hunting through menus. - Big, readable numbers – Designed for real job sites, not just a desk. - Instant feedback – Adjust a value and see airflow, friction, and velocity update right away. What you can do with it - Size round and rectangular ducts -Enter airflow and your target friction or velocity and get recommended duct sizes in seconds. - Compare duct options - See how changing size affects velocity and friction so you can avoid noise, hot spots, and high static. - Get equivalent round sizes - Convert rectangular duct dimensions to an equivalent round size to compare and explain choices. - Work anywhere All calculations run offline on your device. Perfect for basements, rooftops, and new construction sites. Built for HVAC pros Use Ductulator to: - Double-check proposed duct sizes before installation - Verify existing systems during service calls - Teach apprentices how size, airflow, and friction relate - Have clearer conversations with homeowners, builders, and inspectors If you work with ductwork, this is the ductulator you’ll actually want to use—fast, simple, and always in your pocket.
Screenshots
Verdict
The clearest difference is iOS requirement: myCoolblue at 8.0 against PT Ductulator's 26.1. On price, ads, in-app purchases and device support 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.
| Parameter | myCoolblue | PT Ductulator |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 8.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 201 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Condair GmbH | Randall McGrath |
In-app purchases
myCoolblue
No in-app purchases
PT Ductulator
No in-app purchases









