# Idioms and Slang Dictionary vs Rap Dictionary

The clearest difference is in-app purchases: Rap Dictionary at none against Idioms and Slang Dictionary's 1. Rap Dictionary also leads on ads (none vs shown) and review sentiment (92% vs 83%). Idioms and Slang Dictionary's advantage is ratings volume (1.1K vs 12). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Idioms and Slang Dictionary sells 1 one-off in-app purchase. Rap Dictionary asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Idioms and Slang Dictionary against 4.7 for Rap Dictionary. That said, the two scores are not equally well evidenced: Idioms and Slang Dictionary has 1.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 83% of Idioms and Slang Dictionary's written reviews are positive against 92% of Rap Dictionary's.

Both ship on a similar rhythm, roughly every 17 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Idioms and Slang Dictionary | Rap Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.1K ratings)](https://appshunter.io/ios/app/idioms-and-slang-dictionary/id1024598358/reviews)** | [4.7 (12 ratings)](https://appshunter.io/ios/app/rap-dictionary/id6473748885/reviews) |
| Number of ratings | **1.1K** | 12 |
| Positive reviews | 82.9% of reviews | **92.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | Every 17 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 96 MB | 27 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Farlex, Inc.](https://appshunter.io/developer/379450386) | [DailyRapFacts, LLC.](https://appshunter.io/developer/1719674210) |

## What reviewers say

### Idioms and Slang Dictionary

[App page](https://appshunter.io/ios/app/idioms-and-slang-dictionary/id1024598358)

Explore the meanings and origins of over 61,000 idioms, slang terms, proverbs, and expressions. Understand conversational English like a native speaker with definitions, historical context, and example sentences.

**Highlights:** Definitions from top sources, History and origin of phrases, Example sentences, Voice search, Audio pronunciations, Bookmark favorite phrases, Advanced search options

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

**In-app purchases (1)**

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

**What reviewers like**

- 👍 Simple design, easy to use
- 🚀 Accurate results
- 👍 Useful for understanding idioms
- 👍 Helpful for non-native English speakers
- 👍 Great resource for teaching and learning English

**What reviewers complain about**

- 🐛 Impossible to read text due to background issues
- 🐛 Ads still show up despite paid subscription
- 🔧 Needs more advanced features like translations, audio, and contextual information
- 🔧 User experience could be improved, such as better navigation

**Reported bugs**

- Offline mode issues causing the app to go offline frequently
- Bookmarks/favorites not saving properly across device resets

**Requested features**

- Provide translations of idiom definitions in other languages
- Add audio functionality to help with pronunciation
- Improve navigation and browsing experience
- Sync favorites across devices
- Categorize and list commonly used idioms and slang


### Rap Dictionary

[App page](https://appshunter.io/ios/app/rap-dictionary/id6473748885)

Explore a comprehensive A-Z guide to rap and hip-hop terminology, slang, and abbreviations. This free resource helps you understand the language of the culture with over 5,000 terms and definitions.

**Highlights:** A-Z glossary of rap/hip-hop terms, Over 5,000 terms and definitions, Learn urban slang and abbreviations, Understand hip-hop culture, Optimized for iPhone and iPad

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

**In-app purchases:** none


## Frequently asked questions

### Is Idioms and Slang Dictionary free?

Idioms and Slang Dictionary is free to download, with in-app purchases available.

### Is Rap Dictionary free?

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

### Which has better reviews, Idioms and Slang Dictionary or Rap Dictionary?

Idioms and Slang Dictionary is rated higher. Idioms and Slang Dictionary averages 4.7 out of 5 from 1.1K ratings, while Rap Dictionary averages 4.7 from 12 ratings.

### Do Idioms and Slang Dictionary or Rap Dictionary have ads?

Idioms and Slang Dictionary shows ads; Rap Dictionary does not.

### Which is updated more often, Idioms and Slang Dictionary or Rap Dictionary?

Idioms and Slang Dictionary ships an update every 17 months, and Rap Dictionary every 17 months. Most recently, Idioms and Slang Dictionary was updated on October 29, 2026 and Rap 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.*