# Acronyms and Abbreviations vs One Dictionary

The clearest difference is rating: Acronyms and Abbreviations at 4.6 against One Dictionary's 1.0. Acronyms and Abbreviations also leads on ratings volume (307 vs 1). One Dictionary's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Acronyms and Abbreviations sells 1 one-off in-app purchase. One Dictionary asks for nothing beyond the download.

Acronyms and Abbreviations holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Acronyms and Abbreviations has 307 ratings behind it against 1, so its average is the more settled of the two.

Acronyms and Abbreviations ships an update every 17 months, One Dictionary daily. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Acronyms and Abbreviations | One Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (307 ratings)](https://appshunter.io/ios/app/acronyms-and-abbreviations/id1032748686/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/one-dictionary/id1207632925/reviews) |
| Number of ratings | **307** | 1 |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 2 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Farlex, Inc.](https://appshunter.io/developer/379450386) | [Jasmine Studios](https://appshunter.io/developer/565086792) |

## What reviewers say

### Acronyms and Abbreviations

[App page](https://appshunter.io/ios/app/acronyms-and-abbreviations/id1032748686)

Access definitions for over 1 million acronyms and abbreviations across various fields, including medicine, military, IT, and slang. This comprehensive dictionary offers offline access, search suggestions, and the ability to save favorites.

**Highlights:** 1 million+ offline acronyms, Search suggestions, Unlimited bookmarks, Recent searches, Adjustable font size, Share definitions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free upgrade | $4.99 | one-time |

**What reviewers like**

- 👍 Practical and useful dictionary
- 👍 Comprehensive and seamless search
- 👍 Keeps users updated with modern language
- 👍 High collection of must-haves
- 👍 Straightforward and easy to use

**What reviewers complain about**

- 🐛 Application closes immediately after opening
- 🐛 Cannot add own acronyms
- 🐛 Annoying ad system
- 🐛 Not very flexible search (word to abbr)
- 🐛 Installation issues for some

**Reported bugs**

- Application closes immediately after opening (iOS 15.4)
- Crashes at launch on multiple devices

**Requested features**

- Ability to search for abbreviations for a given word
- Implement a less intrusive ad system


### One Dictionary

[App page](https://appshunter.io/ios/app/one-dictionary/id1207632925)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Acronyms and Abbreviations free?

Acronyms and Abbreviations is free to download, with in-app purchases available.

### Is One Dictionary free?

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

### Which has better reviews, Acronyms and Abbreviations or One Dictionary?

Acronyms and Abbreviations is rated higher. Acronyms and Abbreviations averages 4.6 out of 5 from 307 ratings, while One Dictionary averages 1.0 from 1 ratings.

### Do Acronyms and Abbreviations or One Dictionary have ads?

Acronyms and Abbreviations shows ads; One Dictionary does not.

### Which is updated more often, Acronyms and Abbreviations or One Dictionary?

Acronyms and Abbreviations ships an update every 17 months, and One Dictionary daily. Most recently, Acronyms and Abbreviations was updated on October 21, 2026 and One Dictionary on October 24, 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.*