# IHWAP Diagnostics vs EcoMeter Pro

The clearest difference is in-app purchases: IHWAP Diagnostics at none against EcoMeter Pro's 2. IHWAP Diagnostics also leads on ratings volume (5 vs 1). EcoMeter Pro's advantage is update cadence (daily vs every 5 months) and iOS requirement (13.0 vs 16.0). On price, rating, ads and device support there is nothing between them.

Both are free to download. EcoMeter Pro sells 2 in-app purchases, starting at $4.99 per month. IHWAP Diagnostics asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for IHWAP Diagnostics against 5.0 for EcoMeter Pro. That said, the two scores are not equally well evidenced: IHWAP Diagnostics has 5 ratings behind it against 1, so its average is the more settled of the two.

IHWAP Diagnostics ships an update every 5 months, EcoMeter Pro daily. The most recent releases landed on September 26, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | IHWAP Diagnostics | EcoMeter Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/ihwap-diagnostics/id1618558493/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ecometer-pro/id6755688522/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 75 MB | 51 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Travis Jenkins](https://appshunter.io/developer/1618558495) | [KYLE T WHITE](https://appshunter.io/developer/1855567390) |

## What reviewers say

### IHWAP Diagnostics

[App page](https://appshunter.io/ios/app/ihwap-diagnostics/id1618558493)

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.

**Highlights:** Zone Pressure Diagnostics (ZPD), Total External Static Pressure (TESP) calculation, ASHRAE ventilation requirements, Leakage reduction potential estimation, ENERGY STAR compliance checks

**Features:** macOS Compatibility

**In-app purchases:** none


### EcoMeter Pro

[App page](https://appshunter.io/ios/app/ecometer-pro/id6755688522)

This tool streamlines HVAC airflow balancing and reporting for technicians. It guides users through proportional balancing and generates professional PDF reports for residential and light commercial applications, ensuring speed and accuracy in the field.

**Highlights:** Proportional airflow balancing workflow, Standalone single-system balance reports (PDF), Outlet-level balancing summaries, Fast, repeatable field calculations, Customizable reports with company branding

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EcoMeter Standard – Monthly | $4.99 | per month |
| EcoMeter Standard – Yearly | $39.99 | per year |


## Frequently asked questions

### Is IHWAP Diagnostics free?

IHWAP Diagnostics is free to download, with no in-app purchases.

### Is EcoMeter Pro free?

EcoMeter Pro is free to download, with in-app purchases available.

### Which has better reviews, IHWAP Diagnostics or EcoMeter Pro?

IHWAP Diagnostics and EcoMeter Pro are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do IHWAP Diagnostics or EcoMeter Pro have ads?

Neither IHWAP Diagnostics nor EcoMeter Pro shows ads.

### Which is updated more often, IHWAP Diagnostics or EcoMeter Pro?

IHWAP Diagnostics ships an update every 5 months, and EcoMeter Pro daily. Most recently, IHWAP Diagnostics was updated on September 26, 2026 and EcoMeter Pro on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*