# Note Taker HD vs IAAI

The clearest difference is price: IAAI at Free against Note Taker HD's $4.99. IAAI also leads on rating (5.0 vs 4.0) and iOS requirement (14.1 vs 17.0). Note Taker HD's advantage is ratings volume (140 vs 4). On update cadence, ads, in-app purchases and device support there is nothing between them.

IAAI is free to download; Note Taker HD costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

IAAI holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Note Taker HD has 140 ratings behind it against 4, so its average is the more settled of the two.

Note Taker HD ships an update every 4 months, IAAI every 5 months. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Note Taker HD | IAAI |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.0 (140 ratings)](https://appshunter.io/ios/app/note-taker-hd/id366572045/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/iaai/id1588771743/reviews)** |
| Number of ratings | **140** | 4 |
| Positive reviews | 83.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Paid | **Free** |
| Size | 11 MB | 47 MB |
| Requires iOS | 17.0 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Software Garden](https://appshunter.io/developer/342284710) | [Results at Hand Software LLC](https://appshunter.io/developer/669416687) |

## What reviewers say

### Note Taker HD

[App page](https://appshunter.io/ios/app/note-taker-hd/id366572045)

This app allows for versatile handwritten note-taking and PDF annotation on iPad and iPhone. It offers features like zoomed ink, shapes, typed text, and image insertion, with flexible organization and sharing options.

**Highlights:** Zoomed ink for detailed writing, PDF annotation capabilities, Insert photos and shapes, Typed text blocks, Organize with folders and tags, Export as PDF

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Fantastic app, great for engineering and customer communication
- 👍 Text and sketching on the same page
- 👍 Typed notes are more legible than handwritten
- 👍 Typed text remains as editable text objects
- 👍 Zoom window for precise drawing

**What reviewers complain about**

- 🐛 Crashes when exporting PDFs
- 🐛 Crashes when adding photos
- 🐛 Crashes and loses data
- 🐛 Exporting to email not working well
- 🔍 Interface not very intuitive, steep learning curve

**Reported bugs**

- Crashes when exporting PDFs
- Crashes when adding photos
- Crashes and loses data
- Exporting to email not working well

**Requested features**

- Evernote integration
- Ability to scroll between pages
- Ability to underline, bold or italicize typed text
- Ability to group objects together
- Voice recording and clip function


### IAAI

[App page](https://appshunter.io/ios/app/iaai/id1588771743)

Access event details, agendas, and check-in information for fire investigation professionals. This app connects members of an international association dedicated to suppressing arson through professional investigation.

**Highlights:** Event information access, Agenda details, Evaluation forms, Check-in functionality, Maps

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Note Taker HD free?

Note Taker HD costs $4.99, with no in-app purchases.

### Is IAAI free?

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

### Which has better reviews, Note Taker HD or IAAI?

IAAI is rated higher. Note Taker HD averages 4.0 out of 5 from 140 ratings, while IAAI averages 5.0 from 4 ratings.

### Do Note Taker HD or IAAI have ads?

Neither Note Taker HD nor IAAI shows ads.

### Which is updated more often, Note Taker HD or IAAI?

Note Taker HD ships an update every 4 months, and IAAI every 5 months. Most recently, Note Taker HD was updated on October 17, 2026 and IAAI on October 7, 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.*