# American Heritage® Deluxe — UniDict® Powered

> Comprehensive English dictionary and thesaurus with advanced search and audio pronunciations. (iPhone/iPad app by Enfour, Inc..)

- Source: https://appshunter.io/ios/app/american-heritage-deluxe/id304875834 (this page in markdown: same URL + `.md`)
- Developer: [Enfour, Inc.](https://appshunter.io/developer/284965604)
- Category: Reference, Education
- Price: $16.99
- Rating: 4.70/5 from 190 App Store ratings · 126 written reviews indexed
- Age rating: 9+
- Requires: iOS 12.0 · 405 MB
- Languages: Russian, Bangla, Bosnian, Burmese, Khmer, Esperanto, Hiligaynon, Hindi, Irish, Western Panjabi and 44 more
- Released: 2009-02-24
- Data updated: 2026-09-02
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/american-heritage-deluxe/id304875834/reviews.md

## What is American Heritage® Deluxe?

*NOTE: there is a newer version of American Heritage® Dictionary available on the AppStore.  Tap on the "Enfour, Inc." link for AHD5.
________________________________________

The entire 2,074 page, 7.5 pound dictionary with its nearly 300,000 terms –plus 64 thousand recorded sound files & "Roget's II: The New Thesaurus".

• The American Heritage® Dictionary of the English Language
• Roget's II: The New Thesaurus 

________________________________________

"In the battle of the Big Three dictionaries, American Heritage® stands out on iPhone" (4 mice)
— MacWorld
________________________________________


Includes all the functionality of these two titles in one application.

This iPhone/iPod touch version has the entire 2,074 page, 7.5 pound dictionary with its nearly 300,000 terms more than 33,000 written examples –plus 64 thousand professionally recorded sound files. Not to mention the complete front matter and appendices, zoomable graphics -all available instantly at your fingertips.

Main Features:
• entire text of these best selling tomes
• complete front matter and appendices
• unique three-way cross-referencing search
• real-time progressive look-up
• wildcard pattern searches (with * ?)
• fallback online search for esoteric or archaic words and the latest slang
• spelling suggestion dictionary included
• hyperlinking to appendices and between books
• pop-up pronunciation symbols chart
• IPA symbol conversion
• etymology (word history) with root links
• professionally recorded sound files
• zoomable graphics
• support for search from other applications
• Bookmarks with folders & editable notations
• automatic search History
• an "AI Teacher" for deeper explanations or help for ESL students in 98 languages
• AI boosted anagram generator
• "Share" module to search within other apps
　- with a history feature, so you can study later
• "Word-of-the-Day" feature with multiple words sets
• "Today" & LockScreen widgets
• 3D Touch support
• DarkMode support
• Open via Siri
• iPad Pro multi-screen and Drag & Drop
• iPad "Fast App Switching" (Multitasking)
• OS-independent app localization
• iPhone, iPod, iPad and macOS support
• iPhone 17 & iOS26 supported
• complete offline use — no Internet connection

________________________________________

"As apps go, only Enfour’s American Heritage® Dictionary stands out for its graphic appeal and functionality. Although I was pleased to have so much lexical firepower in such a compact form, I was annoyed at how poorly the other dictionaries present on the platform." (4 mice)
— MacWorld

Editor's Choice.
ranking = "Great"
— MacLife

Reviews of the print version:

"The Best Dictionary...Designed to appeal to the eye as well as the mind, it is notable for its imaginative illustrations....This is a great family dictionary, and ideal for schoolrooms."
— The Courier Journal

"This dictionary, now in its fourth edition, makes it fun to look up definitions of words....This up-to-date and eminently useful dictionary features a fabulous full-color design that quickly and effectively guides users to the information they seek."
— Library Journal
________________________________________

"The American Heritage® Dictionary of the English Language, Fourth Edition" and "Roget’s II: The New Thesaurus, Third Edition" are published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Houghton Mifflin Harcourt Publishing Company
http://www.hmco.com

Powered by Enfour's -"UniDict® Engine"

## Key features

- Full text of American Heritage Dictionary
- Roget's II: The New Thesaurus
- 33,000+ written examples
- 64,000+ recorded sound files
- Three-way cross-referencing search
- Real-time progressive look-up
- Offline use

## What do users think of American Heritage® Deluxe?

Overall sentiment: mixed

**Pros**

- 📚 Comprehensive dictionary with extensive word coverage
- 🔊 Professional audio pronunciation for most words
- ⚡ Fast search and lookup functionality
- 🔗 Hyperlinked definitions allowing easy navigation between words
- 📖 Integrated thesaurus with seamless switching
- ✍️ Etymology and usage notes for deeper understanding
- 🎯 Intuitive and user-friendly interface
- 💾 Offline access without internet requirement
- 📱 Works across iPhone and iPad devices
- 🔖 Bookmark and history features for learning
- 🎨 Clean, uncluttered design

**Cons**

- 💰 Very high price point ($25-$39.99)
- 🐛 Frequent crashes on newer iOS versions
- 📉 Incomplete word coverage despite premium pricing
- 🔄 Large file size requiring long update times
- ⚠️ Bait-and-switch upgrade practices
- 😤 Poor customer support responsiveness
- 🚫 App becomes incompatible with iOS updates
- 🔐 Controversial anti-piracy mechanisms
- 📸 Missing illustrations despite 'Deluxe' branding
- 🎨 Limited font size options
- ⚙️ Inconsistent performance across devices

**Commonly reported bugs**

- App crashes on startup with newer iOS versions
- Crashes when searching thesaurus
- Definition fails to load from index panel
- Anti-piracy system falsely flags legitimate customers
- Unauthorized Twitter posts from piracy detection
- App redirects to App Store with 'Total Failure' message
- Sound files fail to play despite being present
- Safe mode error messages
- Back button functionality lost after pronunciation
- Index menu becomes unresponsive
- Incompatibility with iOS 9, 12.5.3, 16.2 and later versions

**Most requested features**

- Native iPad support with full-screen options
- Dark mode for reduced eye strain
- Random word feature for vocabulary building
- Swipe navigation between adjacent entries
- Ability to email or save word lists
- Word finder/reverse search functionality
- Zoom capability for text and images
- Additional font face options (e.g., Helvetica)
- Alternative phonetic systems (e.g., LDOCE)
- Quick jump to specific word sections (noun, verb, phrasal verbs)
- Improved update mechanism for incremental downloads
- More comprehensive illustrations and graphics

## Recent user reviews (10 of 126)

All indexed reviews: https://appshunter.io/ios/app/american-heritage-deluxe/id304875834/reviews.md

### 5/5 — Great! Useful! Full of joy!

*2026-04-20*

The best ever!
The greatest ever!

### 5/5 — Edification Spectrum Level

*2025-09-12, version 16.0*

The American-Heritage-Dictionary for me fulfills my literacy requirement for in depth analysis and rich elucidation about all things lexicological. Many impossible to express thanks!

### 1/5 — Used Once

*2024-05-26, version 15.1*

Downloaded this a week ago. Purchased it and after one day it quit loading.

### 5/5 — Helpful

*2024-02-18, version 15.1*

Easy to use.

However there are many words not included

### 5/5 — Mise à jour régulière

*2023-07-20*

Un superbe dico et en plus il est régulièrement mis à jour !

### 1/5 — Do not purchase

*2023-01-28, version 13.3.2*

I paid $16+ a few days ago for this app. It worked fine for a couple of days but now when I open it it shows the message “Total Failure” then redirects to the App Store where other versions of the dictionary are available that require “In app purchases.” This is a bait & switch and dishonest.

### 1/5 — Fix the crashes to compatible with IOS 162

*2023-01-26, version 13.3.2*

I have used this dictionary for several years now. I paid $39.99 for it and it’s been great but Please can you fix the crashes. App keep crashing since IOS 16.2 update

### 1/5 — 最新版本一打开软件跳转到应用商店，不能用

*2023-01-26*

一打开，就显示top failure 跳转到应用商店，用不了

**Developer response:** There were issues with Apple's licensing system.

Please download the latest version (14.0). That fixes the issue.
Go to AppStore > [your account] > "Update all" and it will download if you are on WiFi.

Sorry for the inconvenience.

### 5/5 — American Heritage Dictionary Deluxe Third Edition

*2023-01-25, version 13.3.2*

To Whom It May Concern:

I just recently bought this dic•tion•ar•y (2 or 3 days ago).  Today it asks me to download a new version and also when I open it there is a message that says: “Total Failure”.
Should I have to pay again for download a new version?
This dictionary was very expensive it cost 30 dollars.
Please help.  

I will appreciate your prompt attention to this matter.

Thanks.

### 1/5 — Doesn’t work

*2023-01-24, version 13.3.2*

No idea why.  It just takes me to the app store.  I paid for this??

## Frequently asked questions about American Heritage® Deluxe

### What is this app?

This app provides the complete text of the American Heritage Dictionary of the English Language and Roget's II: The New Thesaurus. It includes nearly 300,000 terms, over 33,000 written examples, and 64,000 professionally recorded sound files for pronunciation.

### What are the main features of this dictionary app?

Key features include a three-way cross-referencing search, real-time progressive look-up, wildcard pattern searches, spelling suggestions, hyperlinking between entries and appendices, etymology with root links, and professionally recorded sound files for pronunciation. It also offers an AI Teacher for explanations and an AI-boosted anagram generator.

### How much does this app cost?

Based on the information provided, this application is a paid app. There are no mentions of in-app purchases or a subscription model, indicating a one-time purchase for full access.

### Can I use this app offline?

Yes, the app is designed for complete offline use. You do not need an internet connection to access the dictionary, thesaurus, or any of its features, making it convenient for use anywhere.

### Who would benefit from using this app?

This app is ideal for students, writers, educators, language learners, and anyone who frequently needs to look up word definitions, synonyms, or understand word origins. Its comprehensive nature and advanced search capabilities make it a valuable tool for deep language exploration.

## Version history (last 5 releases)

### 17.0 — 2026-07-14

Updates Bookmark sync and backup.
Add support for Anki.

### 16.2 — 2026-03-12

Improved iOS26 support

### 16.1 — 2026-02-24

Better support for iOS26

### 16.0.2 — 2025-09-22

A fix for search on conjugations.

### 16.0 — 2025-09-07

Keeping up to date

## Apps similar to American Heritage® Deluxe

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Oxford Dictionary & Thesaurus](https://appshunter.io/ios/app/oxford-dictionary-and-thesaurus/id978674211) | 4.6 (28,630) | Free | Reference |
| [Dictionary and Thesaurus Pro](https://appshunter.io/ios/app/dictionary-and-thesaurus-pro/id492085918) | 4.9 (2,560) | $9.99 | Reference |
| [Chambers Thesaurus](https://appshunter.io/ios/app/chambers-thesaurus/id342112144) | 4.9 (11) | $4.99 | Reference |
| [Oxford Deluxe (ODE & OTE)](https://appshunter.io/ios/app/oxford-deluxe-ode-and-ote/id599227353) | 4.7 (71) | $24.99 | Reference |
| [Chambers Dictionary](https://appshunter.io/ios/app/chambers-dictionary/id314269183) | 4.8 (13) | $9.99 | Reference |
| [Webster's Writer's Dictionary](https://appshunter.io/ios/app/websters-writers-dictionary/id943993346) | 4.4 (82) | $1.99 | Reference |

## More apps by Enfour, Inc.

- [American Heritage® Dictionary](https://appshunter.io/ios/app/american-heritage-dictionary/id284965601)
- [Wall Street Words](https://appshunter.io/ios/app/wall-street-words/id284967941)
- [American Heritage® Desk](https://appshunter.io/ios/app/american-heritage-desk/id286269540)
- [Roget's II: New Thesaurus](https://appshunter.io/ios/app/rogets-ii-new-thesaurus/id286861782)
- [ロングマン英和辞書](https://appshunter.io/ios/app/id289569759)
- [100 Words Everyone Confuses and Misuses](https://appshunter.io/ios/app/100-words-everyone-confuses-and-misuses/id293782249)

All apps by Enfour, Inc.: https://appshunter.io/developer/284965604

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*