Comparison

HVAC ResLoad vs CPS Link

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

Head to head
About

HVAC ResLoad

Perform ACCA Manual J8 load calculations for residential and small commercial buildings. Generate and email PDF reports for clients and building officials. Includes extensive weather and construction data for detailed analysis.

Highlights
  • ACCA Manual J8 load calculations
  • Field-based cooling and heating load calculations
  • Emailable PDF reports
  • Unlimited projects and templates
  • Global weather data
  • Extensive construction data
  • Room-by-room analysis
Features
Read full description

This app is great for HVAC technicians, contractors, homeowners, HERS and PHIUS raters to easily perform ACCA Manual J8 load calcs. For online help and training videos, go here: http://bit.ly/1PhqlDi The HVAC ResLoad-J app from Carmel is an ACCA-approved Manual J8 residential load calculation app for the Apple iPad. It allows engineers, contractors, and technicians to perform field-based cooling and heating load calculations on residential and small commercial buildings. Users are then able to email PDF reports to customers and local building officials. Reports produced by this app will be acceptable by all municipalities/states (including 30+ US states that have passed laws requiring contractors to submit load calcs from ACCA-approved software.) The HVAC ResLoad-J app allows users to create unlimited projects and perform both block and room-by-room loads. The app includes weather data for 1000s of cities throughout the world and construction data for 100s of wall, floor, roof, ceiling, and window types. The user is also able to model detailed appliance, duct, infiltration, and ventilation loads. The HVAC ResLoad-J app was specifically designed for the Apple iPad, taking advantage of the larger screen, rotating user interface, and other functionality unique to the iPad. This app is similar to our very popular HVAC Residential Load Calcs HD app for the iPad, and it includes many of the same inputs and results. However, the "J" app is ACCA-approved, and thus requires much more detailed analysis of the building. Other features include: 1. Includes a 1000+ world-wide city weather database 2. Allows you to create and store an unlimited number of projects. You can also re-use existing projects as templates for new projects. 3. Includes data for 100s of construction types for walls, roofs, floors, doors, windows, skylights, and ceilings. 4. Allows you to specify an unlimited # of building envelope types (i.e. – doors, walls, roofs, floors, ceilings), window types, and skylight types for each building. 5. Allows you to input individual home appliance information. 6. Allows you to instantly view total heating and cooling load results as you update input data. 7. Allows you to view comprehensive cooling and heating load breakdown reports including breakdown by envelope load, window load, skylight load, infiltration load, ventilation load and internal load contributions. 8. Also performs room-by-room cooling and heating load calc analysis 9. Includes the ability to display a wide variety of on-screen reports including checksum reports (ie – BTUh/SqFt, SqFt/Ton, etc.), complete heating and cooling load breakdown reports, and even graphically-pleasing pie charts showing cooling and heating load breakdowns. These reports can be converted to PDFs and emailed from right within the app. 10. Includes the ability to display a comprehensive HTML report that you can email to yourself or others, and it also includes a spreadsheet attachment that you can open in Excel to create customized reports. 11. Includes the ability to display units in either English (IP) or Metric (SI). 12. As of 2020, includes new project input reports that allow you to print or export to PDF via email. The benefits of using this app are numerous including: 1. Great for use out in the field. Quickly size heating and cooling equipment, show the client, then email the results back to your office for further analysis. 2. Show off your advanced on-screen reports to clients convincing them you are using cutting-edge technology. 3. Save time by inputting information in the field and then returning to your office to perform more in-depth analysis. 4. Submit reports to local municipalities that require ACCA-approved Manual J8 residential load calcs for equipment replacement. Bonus: The HVAC ResLoad-J app now includes our popular HVAC Equipment Locator app built right in! Click here for details about that app: http://bit.ly/1a2RskH

About

CPS Link

Connect multiple wireless sensors to create a comprehensive diagnostic measurement system. Perform quick single measurements or complex full system diagnostics with analytics. Expand your system over time with new sensor solutions.

Highlights
  • Connect multiple wireless sensors
  • Comprehensive diagnostic measurement system
  • Perform quick measurements
  • Complex system diagnostics with analytics
  • Expandable sensor system
Read full description

CPS Link™ is a powerful, easy-to-use application that connects multiple CPS wireless sensors together at one time to create the world’s most comprehensive diagnostic measurement system. The flexibility of this patented system enables users to add sensors as required to perform quick one-step measurement tasks or more complex full home, facility or system diagnostics with analytics. A range of high quality wireless sensors are available to accommodate most common HVAC/R service needs, with more innovative sensor solutions in various levels of release and development. Interconnectivity between the CPS Link app and future sensors remains a primary criterion to provide users with the flexibility of building their own custom measurement systems, over time.

Screenshots

CPS Link4 screens

Verdict

The call

The clearest difference is price: CPS Link at Free against HVAC ResLoad's $199.99. CPS Link also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (157 vs 8). HVAC ResLoad's advantage is rating (3.4 vs 1.9) and review sentiment (50% vs 13%). On 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

CostPrice · In-app purchases · Ads · Monetization

CPS Link is free to download; HVAC ResLoad costs $199.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

HVAC ResLoad holds the better App Store score, 3.4 against 1.9. That said, the two scores are not equally well evidenced: CPS Link has 157 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 50% of HVAC ResLoad's written reviews are positive against 13% of CPS Link's.

UpkeepUpdate frequency

HVAC ResLoad ships an update every 4 months, CPS Link every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard8 real differences · 2 level
HVAC ResLoad versus CPS Link: the parameters behind the verdict, then further details
ParameterHVAC ResLoadCPS Link
Price$199.99Free — better
Rating3.4 (8 ratings) — better1.9 (157 ratings)
Positive reviews50.0% of reviews — better13.3% of reviews
Number of ratings8157 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS15.611.0 — better
Further details — not scored
Size23 MB85 MB
Age rating4+4+
DeveloperCarmel Software CorporationCPS Products

Customer experience

HVAC ResLoad

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews8 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

CPS Link

All ratings154 ratings
Positive21.4%
Neutral0.6%
Negative77.9%
Written reviews105 reviews
Positive13.3%
Neutral1.0%
Negative85.7%

Bugs and requests

HVAC ResLoad

Not enough reviews yet to summarise bugs or requests.

CPS Link

Reported bugs

4 issues
  • App crashes on launch
  • Bluetooth connectivity problems
  • Inconsistent readings and measurements
  • Incompatible with newer iOS versions

Requested features

3 requests
  • Update app to fix compatibility issues
  • Improve customer support and responsiveness
  • Provide better documentation and troubleshooting guides

In-app purchases

None

HVAC ResLoad

No in-app purchases

None

CPS Link

No in-app purchases

Questions

Is HVAC ResLoad free?
HVAC ResLoad costs $199.99, with no in-app purchases.
Is CPS Link free?
CPS Link is free to download, with no in-app purchases.
Which has better reviews, HVAC ResLoad or CPS Link?
HVAC ResLoad is rated higher. HVAC ResLoad averages 3.4 out of 5 from 8 ratings, while CPS Link averages 1.9 from 157 ratings.
Do HVAC ResLoad or CPS Link have ads?
Neither HVAC ResLoad nor CPS Link shows ads.
Which is updated more often, HVAC ResLoad or CPS Link?
HVAC ResLoad ships an update every 4 months, and CPS Link every 3 weeks. Most recently, HVAC ResLoad was updated on November 1, 2026 and CPS Link on November 2, 2026.

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