Comparison

AirPro vs EngiCalc

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

Head to head
About

AirPro

This tool helps you calculate the right size for air conditioners, heat pumps, and furnaces. It provides detailed analysis of heating and cooling costs, energy consumption, and temperature data. You can also evaluate domestic hot water needs and financial aspects like payback periods.

Highlights
  • BTU estimation for HVAC systems
  • Monthly heating and cooling cost calculation
  • Energy consumption and temperature analysis
  • Domestic hot water needs evaluation
  • Financial analysis including payback periods
  • Data export to CSV and PDF reports
Features
Read full description

Welcome to AirPro, a user-friendly tool for everyone that wants to install an air conditioner, heat pump or any type of furnace. AirPro will assist you in finding the right size of the unit, showing you monthly costs for heating and cooling and domestic hot water, monthly energy consumption, monthly and daily temperatures. Beside the BTU estimation, it allows you to experiment with various base temperatures, heating and cooling temperatures, and smart schedules for system off, providing a custom-tailored approach that suits every individual's needs. You will have all the data for the daily, monthly and annual electricity consumption, energy production, electricity cost, heating degree days, cooling degree days and much more. If you are using a Gas Furnace, you will obtain the analysis for gas burned through the year, gas cost per Therms, kWh, m3, Mcf or Gallons. If you are using an Oil Furnace, you will obtain the analysis for daily (monthly/ annual) usage of oil in Liters (Litre) or Gallons. Also we covered the Wood Furnace, and you will have the results in m3 or Cords. But that's just the tip of the iceberg. AirPro's expansive features present an array of system evaluations, encompassing Heat Pumps, Air Conditioners, Electric Heaters, and Gas, Oil, and Wood furnaces. With this extensive range of options, AirPro ensures you have all the information you need to find the system that aligns best with your circumstances and preferences. Data visualization is made easy and professional with AirPro. It offers high-quality charts for intuitive understanding of your system's performance. Need to share or store this information? No problem. AirPro lets you export your data in a convenient CSV format or create comprehensive PDF reports for any variant. But AirPro isn't just about heating and cooling. It extends its analytical prowess to help you evaluate the domestic hot water needs of various types of premises, whether it's a cozy house, multi-story flats, hospital, hotel, office, or a school. On top of all these features, AirPro brings a powerful financial aspect to the table. It provides detailed financial analysis, giving you a clear picture of daily and monthly thermal energy consumption, financial comparisons, payback periods, and net present value (NPV) calculations. This financial insight empowers you to make informed decisions, not just for the comfort of your space, but also for the health of your wallet. AirPro is more than an app—it's your comprehensive, all-in-one tool for thermal energy analysis. It's designed to be a handy assistant, always ready to provide data-driven insights, ensuring you make well-informed decisions about your heating and cooling systems. Experience the power of smart thermal energy management today with AirPro. If you have any questions or suggestions or you need a technical support, please let us know at support@pvsolcast.com. Terms and Conditions link: https://sites.google.com/view/pvfterms/home Privacy Policy link: https://sites.google.com/view/airpropolicy/home

About

EngiCalc

This app provides specialized calculation tools for construction professionals. It helps optimize material usage, estimate quantities, and generate precise dimensions for various building elements like concrete pours, masonry, stairs, rafters, and roofing.

Highlights
  • Concrete material optimization
  • Masonry quantity estimation
  • Effortless stair dimension generation
  • Rafter length and angle calculation
  • Roofing material estimation
Features
Read full description

EngiCalc: The Ultimate Construction Calculator Suite Current Features: Concrete Calculator – Optimize material usage for your pours. Masonry Estimator – Calculate block and mortar quantities with precision. Stair Builder – Generate stair dimensions effortlessly by simply entering the total rise. Rafter Layouts – Quickly determine rafter lengths and angles. Roofing Calculator – Get accurate estimates for shingles and materials (i.e. felt paper) Future Updates Will Include: Electrical, plumbing, and additional engineering disciplines to expand the app’s capabilities.

Screenshots

AirPro4 screens
EngiCalc4 screens

Verdict

The call

The clearest difference is in-app purchases: EngiCalc at none against AirPro's 2. EngiCalc also leads on ads (none vs shown). On price, rating, ratings volume and update cadence 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. AirPro sells 2 in-app purchases, starting at $7.99 per month. EngiCalc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for AirPro against 5.0 for EngiCalc. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

UpkeepUpdate frequency

AirPro ships an update every 4 days, EngiCalc every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
AirPro versus EngiCalc: the parameters behind the verdict, then further details
ParameterAirProEngiCalc
PriceFreeFree
Rating5.0 (5 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings5 — better2
Update frequencyEvery 4 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.6 — better
Further details — not scored
Size18 MB96 MB
Age rating4+4+
DeveloperIgor IlijovskiJoshua Williams

Customer experience

AirPro

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

EngiCalc

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

AirPro

Subscriptions2
  • AirPro Premium - Monthly$7.991 Month
  • AirPro Premium - Annual$29.991 Year
None

EngiCalc

No in-app purchases

Questions

Is AirPro free?
AirPro is free to download, with in-app purchases available.
Is EngiCalc free?
EngiCalc is free to download, with no in-app purchases.
Which has better reviews, AirPro or EngiCalc?
AirPro and EngiCalc are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.
Do AirPro or EngiCalc have ads?
AirPro shows ads; EngiCalc does not.
Which is updated more often, AirPro or EngiCalc?
AirPro ships an update every 4 days, and EngiCalc every 3 days. Most recently, AirPro was updated on October 24, 2026 and EngiCalc on October 28, 2026.

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