HVAC Load Plus vs Wire Gauge Calculator °
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
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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.
Wire Gauge Calculator °
This utility provides instant AWG conversions, NEC references, and voltage drop calculations for electricians and engineers. It offers offline functionality, metric conversions, and ampacity lookup based on standard electrical codes.
- Instant AWG to Metric conversion
- Offline ampacity lookup (NEC Table 310.16)
- Voltage drop calculation with 3% limit alerts
- Support for custom system voltages
- Dual unit support (Feet/Meters)
- Native SwiftUI design with haptic feedback
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Headline: The essential toolbox for electricians and engineers. Instant AWG conversions, NEC reference, and Voltage Drop calculations. Body: Wire Gauge Calculator ° is a professional-grade utility designed for electricians, engineers, and DIY enthusiasts. Upgrade your workflow with a fast, modern, and offline-capable tool that replaces cumbersome charts and manual formulas. Whether you are sizing wire for a home renovation, checking a long cable run for voltage drop, or converting AWG to metric, this app provides instant answers based on standard electrical codes. KEY FEATURES: Professional AWG Tool Instant Reference: Scroll through standard sizes from 18 AWG to 4/0 AWG. Metric Conversion: Automatically converts AWG to Diameter (mm) and Area (mm²). Max Load Capacity: Built-in ampacity lookup based on NEC Table 310.16 (Copper, 75°C). No internet required. Voltage Drop Calculator (New in v1.1) Ensure your electrical runs are safe and compliant. NEC Compliance: Automatically alerts you if voltage drop exceeds the recommended 3% limit (Green/Red status indicators). Flexible Inputs: Quick-fill buttons for standard voltages (12V, 24V, 120V, 240V) or enter custom system voltages. Dual Units: Support for both Feet and Meters length inputs. Precise Formula: Uses standard resistance formulas (Copper) to calculate exact Voltage Drop (V) and Percentage (%). Built for iOS Clean Interface: Native SwiftUI design that is fast and responsive. Haptic Feedback: Feel the confirmation when calculations complete. Privacy First: No data collection, no ads, works 100% offline. Perfect for: Residential & Commercial Electricians Automotive & RV Wiring (12V/24V systems) Solar Power System Design Home Improvement & DIY Projects Stop guessing wire sizes. Download Wire Gauge Calculator ° today and work with confidence.
Screenshots
Verdict
The clearest difference is price: Wire Gauge Calculator ° at $0.99 against HVAC Load Plus's $24.99. Wire Gauge Calculator ° also leads on rating (5.0 vs 2.8) and in-app purchases (none vs 1). HVAC Load Plus's advantage is chart position (#185 vs unranked) and ratings volume (5 vs 1). On ads, monetization model 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
HVAC Load Plus costs $24.99 and Wire Gauge Calculator ° $0.99 up front. HVAC Load Plus sells 1 one-off in-app purchase. Wire Gauge Calculator ° asks for nothing beyond the download.
Wire Gauge Calculator ° holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: HVAC Load Plus has 5 ratings behind it against 1, so its average is the more settled of the two.
HVAC Load Plus ships an update every 9 months, Wire Gauge Calculator ° weekly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | HVAC Load Plus | Wire Gauge Calculator ° |
|---|---|---|
| Price | $24.99 | $0.99 — better |
| Rating | 2.8 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 9 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Best chart rank | #185 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 18 MB | 1 MB |
| Age rating | +4 | 4+ |
| Developer | Carmel Software Corporation | bobo pei |
Customer experience
HVAC Load Plus
Wire Gauge Calculator °
In-app purchases
HVAC Load Plus
- HVAC Equipment Locator$9.99
Wire Gauge Calculator °
No in-app purchases
Questions
Is HVAC Load Plus free?
Is Wire Gauge Calculator ° free?
Which has better reviews, HVAC Load Plus or Wire Gauge Calculator °?
Do HVAC Load Plus or Wire Gauge Calculator ° have ads?
Which is updated more often, HVAC Load Plus or Wire Gauge Calculator °?
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