# Acronyms and Abbreviations vs Deep Dictionary

The clearest difference is in-app purchases: Deep Dictionary at none against Acronyms and Abbreviations's 1. Deep Dictionary also leads on update cadence (weekly vs every 17 months). Acronyms and Abbreviations's advantage is ratings volume (301 vs 51) and device support (3 vs 1). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.6 for Acronyms and Abbreviations against 4.7 for Deep Dictionary. That said, the two scores are not equally well evidenced: Acronyms and Abbreviations has 301 ratings behind it against 51, so its average is the more settled of the two. Written reviews split almost evenly too, at 78% and 78% positive.

Acronyms and Abbreviations ships an update every 17 months, Deep Dictionary weekly. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Acronyms and Abbreviations | Deep Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (301 ratings)](https://appshunter.io/ios/app/acronyms-and-abbreviations/id1032748686/reviews) | **[4.7 (51 ratings)](https://appshunter.io/ios/app/deep-dictionary/id6451319239/reviews)** |
| Number of ratings | **301** | 51 |
| Positive reviews | 77.8% of reviews | 77.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 17 months | **Weekly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 39 MB | 14 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Farlex, Inc.](https://appshunter.io/developer/379450386) | [DEEPCO](https://appshunter.io/developer/1697523614) |

## 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


### Deep Dictionary

[App page](https://appshunter.io/ios/app/deep-dictionary/id6451319239)

Access definitions from various sources like Wikipedia and Urban Dictionary, with multilingual support and pronunciation guides. Enhance your vocabulary with synonyms, related words, and real-life usage examples.

**Highlights:** Multilingual definitions, Urban Dictionary slang integration, Wikipedia content access, Pronunciation guides and usage examples, Comprehensive thesaurus, Images and contextual phrases

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

**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 Deep Dictionary free?

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

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

Deep Dictionary is rated higher. Acronyms and Abbreviations averages 4.6 out of 5 from 301 ratings, while Deep Dictionary averages 4.7 from 51 ratings.

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

Both Acronyms and Abbreviations and Deep Dictionary show ads.

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

Acronyms and Abbreviations ships an update every 17 months, and Deep Dictionary weekly. Most recently, Acronyms and Abbreviations was updated on October 17, 2026 and Deep Dictionary on October 5, 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.*