Comparison

HVAC Load Plus vs GoTemp Pro

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

GoTemp Pro

This app offers service technicians powerful tools for troubleshooting and servicing commercial and residential product lines. Access product information, literature, warranty details, and technical calculators by scanning QR codes or entering serial numbers.

Highlights
  • Product information access
  • Technical literature library
  • Warranty management
  • Bluetooth connectivity for commercial equipment
  • Issue reporting
  • Technical calculators
  • Training materials
Read full description

GoTemp Pro (formerly DS Solutions) provides service technicians with faster, smarter, and more powerful tools for troubleshooting and servicing Commercial and Residential product lines across all brands, including Bosch, Champion, Coleman, Evcon, Fraser-Johnston, Guardian, Johnson Controls, Kenmore, Luxaire, TempMaster, and York. Access information easily by scanning the QR label on the rating plate or entering the unit’s serial number. Whether on or off the job site, technicians save time with features like: • Product information (nomenclature, fault codes, parts list, controls information) • Literature (technical guide, installation manual, wiring diagrams, performance reports) • Warranty (product registration, warranty claims, extended warranty purchases) • Bluetooth connectivity for commercial and residential equipment • Report product issues (Quality issue, concealed damage and shipping damage) • Tech calculators (RDS, superheat/subcool, temp vs resistance, splits piping configurator) • Training material Designed for convenience, GoTemp Pro delivers detailed information and direct support to ensure technicians have everything they need to succeed—faster, smarter, and more powerful than ever.

Screenshots

HVAC Load Plus4 screens
GoTemp Pro4 screens

Verdict

The call

The clearest difference is price: GoTemp Pro at Free against HVAC Load Plus's $24.99. GoTemp Pro also leads on in-app purchases (none vs 1) and update cadence (every 3 months vs every 9 months). HVAC Load Plus's advantage is review sentiment (60% vs 20%) and iOS requirement (13.0 vs 15.6). On rating, 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

CostPrice · In-app purchases · Ads · Monetization

GoTemp Pro is free to download; HVAC Load Plus costs $24.99 up front. HVAC Load Plus sells 1 one-off in-app purchase. GoTemp Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 2.8 for HVAC Load Plus against 2.9 for GoTemp Pro. Both are backed by a comparable volume of ratings — 5 and 18 respectively. Written reviews are what separate them: 60% of HVAC Load Plus's written reviews are positive against 20% of GoTemp Pro's.

UpkeepUpdate frequency

HVAC Load Plus ships an update every 9 months, GoTemp Pro every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
HVAC Load Plus versus GoTemp Pro: the parameters behind the verdict, then further details
ParameterHVAC Load PlusGoTemp Pro
Price$24.99Free — better
Rating2.8 (5 ratings)2.9 (18 ratings) — better
Positive reviews60.0% of reviews — better20.0% of reviews
Number of ratings518 — better
Update frequencyEvery 9 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.6
Further details — not scored
Size18 MB143 MB
Age rating+44+
DeveloperCarmel Software CorporationBosch Thermotechnik GmbH

Customer experience

HVAC Load Plus

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews15 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

GoTemp Pro

All ratings18 ratings
Positive44.4%
Neutral5.6%
Negative50.0%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

In-app purchases

1 purchases

HVAC Load Plus

One-time1
  • HVAC Equipment Locator$9.99
None

GoTemp Pro

No in-app purchases

Questions

Is HVAC Load Plus free?
HVAC Load Plus costs $24.99, and also offers in-app purchases.
Is GoTemp Pro free?
GoTemp Pro is free to download, with no in-app purchases.
Which has better reviews, HVAC Load Plus or GoTemp Pro?
GoTemp Pro is rated higher. HVAC Load Plus averages 2.8 out of 5 from 5 ratings, while GoTemp Pro averages 2.9 from 18 ratings.
Do HVAC Load Plus or GoTemp Pro have ads?
Neither HVAC Load Plus nor GoTemp Pro shows ads.
Which is updated more often, HVAC Load Plus or GoTemp Pro?
HVAC Load Plus ships an update every 9 months, and GoTemp Pro every 3 months. Most recently, HVAC Load Plus was updated on November 1, 2026 and GoTemp Pro on November 3, 2026.

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