# ExView® W vs IHWAP Diagnostics

The clearest difference is ratings volume: IHWAP Diagnostics at 5 against ExView® W's 1. ExView® W's advantage is iOS requirement (8.0 vs 16.0). On price, rating, ads and in-app purchases 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 ExView® W against 5.0 for IHWAP Diagnostics. 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.

## The numbers

| Metric | ExView® W | IHWAP Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/exview-w-series/id1354801068/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/ihwap-diagnostics/id1618558493/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 months |
| Monetization | — | Free |
| Size | 16 MB | 75 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Extech Instruments](https://appshunter.io/developer/966942122) | [Travis Jenkins](https://appshunter.io/developer/1618558495) |

## What reviewers say

### ExView® W

[App page](https://appshunter.io/ios/app/exview-w-series/id1354801068)

**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 ExView® W free?

ExView® W 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, ExView® W or IHWAP Diagnostics?

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

### Do ExView® W or IHWAP Diagnostics have ads?

Neither ExView® W nor IHWAP Diagnostics shows ads.

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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.*