Comparison

Installer App vs BTU Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Installer App

This app provides HVAC professionals with a digital toolbox for everyday tasks. It offers product information, installation guides, and advanced features to streamline work, including project management and hydronic balancing tools.

Highlights
  • Radiator Presetting
  • Product Finder
  • My Projects (Cloud-based)
  • Hydronic Balancing
  • Flow/Pressure Calculator
  • Floor Heating Tools
  • Burner Converter
  • Magnetic Tool
Features
Read full description

The Danfoss Installer app is an all-in-one digital toolbox that helps plumbers, heating and HVAC professionals, service technicians, engineers, and installers with your everyday tasks. For projects big and small, our comprehensive toolbox equips you with the latest product information, installation guides and advanced features to streamline your work, making your daily tasks easier. Simplify project management with customizable databases to track your work and pick up where you left off, anytime you need. The Danfoss Installer app offers a collection of useful tools and features: Radiator Presetting Set proper values based on valve, sensor, and radiator type, or alternatively by room size and heat loss. Get the heat emission, flow, and presetting right every time. Product Finder Search and access comprehensive product information, documentation, and details. Download Danfoss product documentation directly in the app. My Projects Make project management easier by creating a list of your clients and jobs, saving contact and building information, calculating system properties, and presetting for radiator and underfloor heating. Cloud-based, My Projects allows you to save everything in one spot for easy overview and fast access across all your devices. Hydronic Balancing Determine accurate system heat output with precise flow calculations. Tailor settings to valve type, handle position, and measured pressure. Flow/Pressure calculator Calculate, convert, or verify pressure, flow, power, and temperature (values or units). Floor heating Specify circuit lengths and calculate presetting for your floor heating manifolds. Select floor heating pipe type and dimensions, define heat loss, and divide rooms into circuits. Burner Converter Modify burner components and find spare parts in a matter of seconds, while keeping an overview of product updates and alternatives. Magnetic Tool Test solenoid valve coils quickly and easily. If the wheel rotates, your valve is good to go. Timer Replacement Select the appropriate timer replacement for a Danfoss or third-party unit. Installation guides are available as well. Feedback Your input matters, and we're committed to continuously improving Installer App to meet your needs. If you encounter a bug or have a feature suggestion, please use the in-app feedback function available in Settings. Alternatively, you can reach us via email at coolapp@danfoss.com. Danfoss Climate Solutions At Danfoss Climate Solutions, we engineer energy-efficient solutions to help the world get more out of less. Our innovative products and solutions enable a decarbonized, digital, and more sustainable tomorrow, and our technology supports a cost-efficient transition to renewable energy sources. With a strong foundation in quality, people, and the climate, we drive the energy, refrigerant, and food system transitions needed to achieve climate goals. Read more about us at www.danfoss.com. Terms and Conditions apply for use of the app.

About

BTU Calculator

Estimate the cooling capacity needed for your data center. This tool considers factors like space, occupants, and heat output to help you maintain optimal temperature and humidity. It provides instant results as you update inputs, serving as a guide for system selection.

Highlights
  • Estimate cooling capacity
  • Maintain 24°C and 30-50% humidity
  • Consider space, occupants, window R-value
  • Calculate total heat output
  • Instant cooling load results
  • Guide for system selection
Features
Read full description

Choosing the right data center cooling system for your data center is essential to the success of all companies that depend on achieving business-critical continuity. The application uses a simple calculation method to estimate the cooling capacity you'll need to maintain a temperature of 24°C with a humidity level of between 30 and 50 percent for regions that have a climate which ranges from temperate to continental. The features included in this app: • will consider such factors as the amount of space to be cooled, the number of occupants, the orientation and R-value of windows, the total heat output of a data center and more. • allows you to instantly view total cooling load results as you update input data Please note that this calculator can only gauge a rough estimate. This application should only be used as a guide. As always you should always consult a professional and qualified contractor.

Screenshots

Installer App4 screens
BTU Calculator4 screens

Verdict

The call

The clearest difference is rating: BTU Calculator at 4.6 against Installer App's 3.0. BTU Calculator also leads on ratings volume (313 vs 7) and review sentiment (69% vs 53%). Installer App's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BTU Calculator sells 1 one-off in-app purchase. Installer App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BTU Calculator holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: BTU Calculator has 313 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 53% of Installer App's written reviews are positive against 69% of BTU Calculator's.

UpkeepUpdate frequency

Installer App ships an update every 5 weeks, BTU Calculator every 4 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

Scorecard8 real differences · 2 level
Installer App versus BTU Calculator: the parameters behind the verdict, then further details
ParameterInstaller AppBTU Calculator
PriceFreeFree
Rating3.0 (7 ratings)4.6 (313 ratings) — better
Positive reviews53.3% of reviews68.8% of reviews — better
Number of ratings7313 — better
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size90 MB23 MB
Age rating4+4+
DeveloperDanfoss A/SCristinel Bontas

Customer experience

Installer App

All ratings7 ratings
Positive42.9%
Neutral0.0%
Negative57.1%
Written reviews15 reviews
Positive53.3%
Neutral13.3%
Negative33.3%

BTU Calculator

All ratings313 ratings
Positive89.8%
Neutral5.1%
Negative5.1%
Written reviews16 reviews
Positive68.8%
Neutral12.5%
Negative18.8%

In-app purchases

None

Installer App

No in-app purchases

1 purchases

BTU Calculator

One-time1
  • Remove Ads$0.99

Questions

Is Installer App free?
Installer App is free to download, with no in-app purchases.
Is BTU Calculator free?
BTU Calculator is free to download, with in-app purchases available.
Which has better reviews, Installer App or BTU Calculator?
BTU Calculator is rated higher. Installer App averages 3.0 out of 5 from 7 ratings, while BTU Calculator averages 4.6 from 313 ratings.
Do Installer App or BTU Calculator have ads?
BTU Calculator shows ads; Installer App does not.
Which is updated more often, Installer App or BTU Calculator?
Installer App ships an update every 5 weeks, and BTU Calculator every 4 months. Most recently, Installer App was updated on October 17, 2026 and BTU Calculator on October 13, 2026.

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