# EMAT Field Auditor vs IHWAP Diagnostics

The clearest difference is iOS requirement: EMAT Field Auditor at 13.0 against IHWAP Diagnostics's 16.0. On price, rating, ratings volume and update cadence there is nothing between them.

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 EMAT Field Auditor against 5.0 for IHWAP Diagnostics. Both are backed by a comparable volume of ratings — 8 and 5 respectively.

EMAT Field Auditor ships an update every 3 months, IHWAP Diagnostics every 5 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | EMAT Field Auditor | IHWAP Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/emat-field-auditor/id1440632993/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/ihwap-diagnostics/id1618558493/reviews) |
| Number of ratings | **8** | 5 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 47 MB | 75 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EMAT, LLC](https://appshunter.io/developer/1440632992) | [Travis Jenkins](https://appshunter.io/developer/1618558495) |

## What reviewers say

### EMAT Field Auditor

[App page](https://appshunter.io/ios/app/emat-field-auditor/id1440632993)

Streamline energy audits with a mobile tool that allows for quick data capture, photo tagging, and cloud synchronization. Customize templates for various audit types and access support from experienced energy professionals.

**Highlights:** Customizable audit templates, Photo tagging for equipment, Cloud synchronization, Offline functionality, Multi-auditor support, Imperial/metric support

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is EMAT Field Auditor free?

EMAT Field Auditor is free to download, with no in-app purchases.

### Is IHWAP Diagnostics free?

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

### Which has better reviews, EMAT Field Auditor or IHWAP Diagnostics?

EMAT Field Auditor and IHWAP Diagnostics are both rated 5.0 out of 5 on the App Store, from 8 and 5 ratings respectively.

### Do EMAT Field Auditor or IHWAP Diagnostics have ads?

Neither EMAT Field Auditor nor IHWAP Diagnostics shows ads.

### Which is updated more often, EMAT Field Auditor or IHWAP Diagnostics?

EMAT Field Auditor ships an update every 3 months, and IHWAP Diagnostics every 5 months. Most recently, EMAT Field Auditor was updated on November 2, 2026 and IHWAP Diagnostics on November 3, 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.*