# IHWAP Diagnostics vs DataJot

The clearest difference is price: IHWAP Diagnostics at Free against DataJot's $4.99. IHWAP Diagnostics also leads on iOS requirement (16.0 vs 26.0). DataJot's advantage is update cadence (monthly vs every 5 months). On rating, review sentiment, ratings volume and ads there is nothing between them.

IHWAP Diagnostics is free to download; DataJot costs $4.99 up front. 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 5.0 for DataJot. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

IHWAP Diagnostics ships an update every 5 months, DataJot monthly. The most recent releases landed on June 5, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | IHWAP Diagnostics | DataJot |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/ihwap-diagnostics/id1618558493/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/datajot/id6748443459/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | **Free** | Paid |
| Size | 75 MB | 9 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Travis Jenkins](https://appshunter.io/developer/1618558495) | [Arthur BABEY](https://appshunter.io/developer/1825825866) |

## 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


### DataJot

[App page](https://appshunter.io/ios/app/datajot/id6748443459)

Easily track personal metrics like temperature, energy, or mood without complex spreadsheets. Visualize trends with simple charts and customize your data tracking experience. Your data stays private and syncs across devices.

**Highlights:** Custom tracker creation, Ready-made templates, Data visualization with charts, Multi-period trend analysis, Widget support for quick entry, Shortcuts app integration, CSV data export

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is IHWAP Diagnostics free?

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

### Is DataJot free?

DataJot costs $4.99, with no in-app purchases.

### Which has better reviews, IHWAP Diagnostics or DataJot?

IHWAP Diagnostics and DataJot are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do IHWAP Diagnostics or DataJot have ads?

Neither IHWAP Diagnostics nor DataJot shows ads.

### Which is updated more often, IHWAP Diagnostics or DataJot?

IHWAP Diagnostics ships an update every 5 months, and DataJot monthly. Most recently, IHWAP Diagnostics was updated on June 5, 2026 and DataJot on September 22, 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.*