IHWAP Diagnostics vs Conduit HVAC Toolkit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IHWAP Diagnostics
This application assists with home weatherization by quantifying air leakage, calculating ventilation needs, and assessing duct system pressure against program standards. It helps prioritize air sealing and ensures compliance with energy efficiency guidelines.
- Zone Pressure Diagnostics (ZPD)
- Total External Static Pressure (TESP) calculation
- ASHRAE ventilation requirements
- Leakage reduction potential estimation
- ENERGY STAR compliance checks
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Illinois Home Weatherization Assistance Program (IHWAP) Diagnostics application for the University of Illinois. This app is the product of a collaboration between the Indoor Climate Research & Training Center’s Senior Weatherization Trainer, Nate Price, and me. The Zone Pressure Diagnostics (ZPD) function will quantify the connection between the house and a zone and between that zone and the outdoors. It will also estimate the total leakage reduction potential in the zone, which should assist with prioritizing air sealing measures. The Total External Static Pressure (TESP) function will calculate total pressure and the pressure caused by the various components of a duct system and compare them to Illinois Home Weatherization Assistance Program (IHWAP) standards for recommended replacement options. The American Society of Heating and Air-Conditioning Engineers (ASHRAE) function will calculate home ventilation requirements ensuring proper pollutant control and ENERGY STAR compliance.
Conduit HVAC Toolkit
This iPad app empowers HVAC contractors to quickly scan homes, generate 3D models, and perform certified load calculations. Visualize installations with augmented reality and create professional reports to build customer trust and close more sales.
- LiDAR-powered home scanning
- 3D model creation
- ACCA-certified load calculations
- Augmented reality equipment visualization
- Professional report generation
- Faster sales process
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Conduit Tech is the LiDAR-powered design and sales platform for HVAC professionals. Our iPad-based solution enables contractors to scan homes, create 3D models, perform ACCA-certified load calculations, and visualize installations, all in under 15 minutes. We help HVAC contractors: • Transform complex load calculations into engaging visual sales tools • Create detailed 2D floor plans and 3D models without manual measurements • Visualize equipment placement using augmented reality • Generate professional reports that build customer trust • Close more deals and increase average ticket sizes Built specifically for residential HVAC contractors looking to stand out during in-home visits, Conduit works for traditional systems and heat pumps, while satisfying rebate and permitting requirements. Join thousands of successful HVAC contractors who are transforming their businesses with Conduit Tech. Scan homes, calculate loads, and close deals faster than ever before. Sign up now and transform your HVAC business!
Screenshots
Verdict
The clearest difference is update cadence: Conduit HVAC Toolkit at every 3 weeks against IHWAP Diagnostics's every 5 months. Conduit HVAC Toolkit also leads on ratings volume (40 vs 5). IHWAP Diagnostics's advantage is iOS requirement (16.0 vs 18.6). On price, rating, review sentiment and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for IHWAP Diagnostics against 4.9 for Conduit HVAC Toolkit. That said, the two scores are not equally well evidenced: Conduit HVAC Toolkit has 40 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
IHWAP Diagnostics ships an update every 5 months, Conduit HVAC Toolkit every 3 weeks. The most recent releases landed on October 12, 2026 and October 27, 2026 respectively.
| Parameter | IHWAP Diagnostics | Conduit HVAC Toolkit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.9 (40 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 | 40 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 75 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | Travis Jenkins | Conduit Tech |
Customer experience
IHWAP Diagnostics
Conduit HVAC Toolkit
In-app purchases
IHWAP Diagnostics
No in-app purchases
Conduit HVAC Toolkit
No in-app purchases
Questions
Is IHWAP Diagnostics free?
Is Conduit HVAC Toolkit free?
Which has better reviews, IHWAP Diagnostics or Conduit HVAC Toolkit?
Do IHWAP Diagnostics or Conduit HVAC Toolkit have ads?
Which is updated more often, IHWAP Diagnostics or Conduit HVAC Toolkit?
Other comparisons
