HVAC Load Plus vs CPS Link
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HVAC Load Plus
Perform detailed heating and cooling load calculations for buildings in the field using your iPhone. Access a vast weather database and construction data to generate comprehensive reports that can be emailed or exported to spreadsheets.
- Detailed heating and cooling load calculations
- 1000+ city weather database
- Extensive construction type data
- Unlimited project creation and storage
- Comprehensive load breakdown reports
- Emailable HTML reports with spreadsheet attachments
- Company information display on reports
Read full descriptionHide full description
The HVAC Load+ iPhone app allows you to perform detailed heating and cooling block loads for small commercial and residential buildings out in the field by taking advantage of the simplicity and power of the iPhone. It performs heating and cooling block load calculations based upon industry standard calculation methods. The following is just a small sample of the features included in this app: 1. Includes a 1000+ world-wide city weather database 2. Includes data for 100s of construction types for walls, roofs, floors, doors, windows, skylights, ceilings, and more 3. Allows you to create and store an unlimited number of projects. You can also copy existing projects to new projects for easy reuse of data 4. Allows you to specify an unlimited # of opaque types (ie – doors, walls, roofs, floors, ceilings), window types, and skylight types for each building 5. Allows you to view comprehensive cooling and heating load breakdown reports including breakdown by opaque load, window load, skylight load, infiltration load, ventilation load and internal load contributions 6. Opaque inputs include opaque type, opaque construction number, dimensions, and opening areas 7. Window inputs include window type, internal and external shading type, overhang dimensions, window area, and more.. 8. Skylight inputs include skylight type, dimensions, orientation, and more.. 9. Additional input types include # of people, # of bedrooms, ventilation airflow, and more.. 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 further massage data on your desktop 11. Includes ability to input your company information to display on the emailed report 12. Includes ability to display units in either English (IP) or Metric (SI). 13. Equipment location services It also includes 2 bonus modules: 1. The "HVAC Equipment Locator" has the same functionality as our stand-alone Locator app. It allows you to input information about all of your HVAC equipment, upload it to a remote web server (at www.carmelsoft.com/EL), and SAFELY share information about it with other technicians within your company. The equipment's GPS coordinates become its globally unique identifier, allowing you to input and retrieve information about it just by standing next to it. 2. The “HVAC Quick Load” module allows you to quickly perform rule-of-thumb heating and cooling load calcs based upon just inputting the building type, square area, and # of people. Please see the description located under the stand-alone "HVAC Quick Load" app for more details about it. The benefits of using this app are: 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 This app was designed by Carmel Software Corporation, a 20-year old software design firm specializing in engineering analysis software applications geared toward engineers, architects, technicians, and home owners. In fact, our software powers the analysis capabilities of major Autodesk software tools such as Revit (The makers of AutoCAD). We will continue to update this app based upon user feedback. Please email us at info@carmelsoft.com for any comments. We also offer training and tutorial videos at: www.carmelsoft.com/HVACLoadPlus.
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.
- Connect multiple wireless sensors
- Comprehensive diagnostic measurement system
- Perform quick measurements
- Complex system diagnostics with analytics
- Expandable sensor system
Read full descriptionHide 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
Verdict
The clearest difference is review sentiment: HVAC Load Plus at 60% against CPS Link's 13%. HVAC Load Plus also leads on rating (2.8 vs 1.9). CPS Link's advantage is price (Free vs $24.99) and in-app purchases (none vs 1). On ads 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
CPS Link is free to download; HVAC Load Plus costs $24.99 up front. HVAC Load Plus sells 1 one-off in-app purchase. CPS Link asks for nothing beyond the download.
HVAC Load Plus holds the better App Store score, 2.8 against 1.9. That said, the two scores are not equally well evidenced: CPS Link has 157 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 60% of HVAC Load Plus's written reviews are positive against 13% of CPS Link's.
HVAC Load Plus ships an update every 9 months, CPS Link every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | HVAC Load Plus | CPS Link |
|---|---|---|
| Price | $24.99 | Free — better |
| Rating | 2.8 (5 ratings) — better | 1.9 (157 ratings) |
| Positive reviews | 60.0% of reviews — better | 13.3% of reviews |
| Number of ratings | 5 | 157 — better |
| Update frequency | Every 9 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 85 MB |
| Age rating | +4 | 4+ |
| Developer | Carmel Software Corporation | CPS Products |
Customer experience
HVAC Load Plus
CPS Link
Bugs and requests
HVAC Load Plus
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
HVAC Load Plus
- HVAC Equipment Locator$9.99
CPS Link
No in-app purchases
Questions
Is HVAC Load Plus free?
Is CPS Link free?
Which has better reviews, HVAC Load Plus or CPS Link?
Do HVAC Load Plus or CPS Link have ads?
Which is updated more often, HVAC Load Plus or CPS Link?
Other comparisons















