IHWAP Diagnostics vs Ecode Dart
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.
Ecode Dart
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Add-on Free Mobile App to access and edit data on www.ecodedart.com account. The eCode Mobile App allows users of the web service to access data and take photos for use in completing energy code testing and field inspections. Available tests include Infiltration Blower Door Test, Duct Leakage Testing, Mechanical Ventilation Testing and Insulation and Air-Barrier Inspections.
Screenshots
Verdict
IHWAP Diagnostics and Ecode Dart are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
IHWAP Diagnostics ships an update every 5 months, Ecode Dart every 3 months. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.
| Parameter | IHWAP Diagnostics | Ecode Dart |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 75 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Travis Jenkins | MoBo's Inc |
In-app purchases
IHWAP Diagnostics
No in-app purchases
Ecode Dart
No in-app purchases
Questions
Is IHWAP Diagnostics free?
Is Ecode Dart free?
Do IHWAP Diagnostics or Ecode Dart have ads?
Which is updated more often, IHWAP Diagnostics or Ecode Dart?
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