Idioms and Slang Dictionary vs Rap Dictionary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Idioms and Slang Dictionary
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.
- Definitions from top sources
- History and origin of phrases
- Example sentences
- Voice search
- Audio pronunciations
- Bookmark favorite phrases
- Advanced search options
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Idioms and Slang Dictionary by Farlex gives you definitions and examples from top sources like McGraw-Hill and Houghton Mifflin for more than 61,000 terms, including: Idioms Slang terms Verbal phrases Abbreviations Proverbs Clichés Regionalisms Colloquialisms Expressions Sayings and more! Get clear, in-depth definitions of tens of thousands of idioms used in the US and throughout English-speaking world. You say them every day, but do you know where they come from? Get the history behind the phrase. FEATURES * Search by keyword or full phrase and always find what you're looking for. * View multiple example sentences to see how an idiom is used in everyday speech. * Get the history behind the phrase. Find out when and where an idiom originated. * Use native voice search to look up a word or phrase just by saying it. (With supported devices) * Play 13,000+ audio pronunciations of keywords for both American and British speakers in online mode. * Learning English? To sound like a native speaker, you need to know idioms! Master conversational English with this free resource. * Add unlimited bookmarks and build your vocabulary. * View your recent searches. * See search suggestions as you type. * Perform advanced searches, including "Starts with," "Ends with," "Contains," and "Wildcard." * Share your favorite phrases via social networks, email, and text. (With supported devices) * This is NOT a preview or a trial version, and there is no "locked" content. Open the app and immediately access all content, no subscriptions required! * User-friendly, comprehensive, and authoritative: the perfect free Idioms and Slang Dictionary for new English speakers or anyone curious about the English language! Here's a sneak-peak of what you'll find inside: let the cat out of the bag Give away a secret, as in "Mom let the cat out of the bag and told us Karen was engaged." This expression alludes to the dishonest practice of a merchant substituting a worthless cat for a valuable pig, which is discovered only when the buyer gets home and opens the bag. [Mid-1700s] silver lining An element of hope or a redeeming quality in an otherwise bad situation, as in "The rally had a disappointing turnout, but the silver lining was that those who came pledged a great deal of money." This metaphoric term is a shortening of "Every cloud has a silver lining," in turn derived from John Milton's Comus (1634): "A sable cloud turns forth its silver lining on the night." a picture is worth a thousand words A graphic illustration conveys a stronger message than words, as in "The book jacket is a big selling point—one picture is worth a thousand words." This saying was invented by an advertising executive, Fred R. Barnard. To promote his agency's ads he took out an ad in Printer's Ink in 1921 with the headline "One Look Is Worth a Thousand Words" and attributed it to an ancient Japanese philosopher. Six years later he changed it to "Chinese Proverb: One Picture Is Worth Ten Thousand Words," illustrated with some Chinese characters. The attribution in both was invented; Barnard simply believed an Asian origin would give it more credibility. Download now for free and get instant access to content you won't find anywhere else! How do we do it? TheFreeDictionary.com - Farlex apps have been downloaded tens of millions times across multiple platforms, with top ratings after hundreds of thousands of reviews. We work with the best publishers to bring together trusted content in the most comprehensive, authoritative dictionary apps on the market. Our flagship app is The Free Dictionary (TFD), powered by TheFreeDictionary.com. Find our other apps by searching "Dictionary by Farlex" in the App Store.
Rap Dictionary
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.
- 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
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The official Rap Dictionary® App by DailyRapFacts® Rap Dictionary is a FREE, simple, trusted, & accessible library of Rap/Hip-Hop terminology, slang, acronyms, phrases, lingo, ebonics, abbreviations, & more. Continuously updated with 5,000+ terms & definitions used in Hip-Hop and Rap music, the RapDictionary.com dictionary app lets you look up & learn thousands of urban slang terms while improving your understanding of the culture. Optimized for both your iPhone and iPad. Rap Dictionary App is an A-Z pocket resource based on RapDictionary.com & the Rap Dictionary book by DailyRapFacts®. Learn the language of Rap/Hip-Hop. Trying to learn more about Rap & Hip Hop music? Then, this app is for you! Download the Rap Dictionary app for unlimited access to rap terms whenever and wherever you need them. Now you know what that word in that song means.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Idioms and Slang Dictionary | Rap Dictionary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.1K ratings) — better | 4.7 (12 ratings) |
| Positive reviews | 82.9% of reviews | 92.3% of reviews — better |
| Number of ratings | 1.1K — better | 12 |
| Update frequency | Every 17 months | Every 17 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 96 MB | 27 MB |
| Age rating | 12+ | 12+ |
| Developer | Farlex, Inc. | DailyRapFacts, LLC. |
Customer experience
Idioms and Slang Dictionary
Rap Dictionary
Bugs and requests
Idioms and Slang Dictionary
Reported bugs
2 issues- Offline mode issues causing the app to go offline frequently
- Bookmarks/favorites not saving properly across device resets
Requested features
5 requests- 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
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Idioms and Slang Dictionary
- Ad-free upgrade$4.99
Rap Dictionary
No in-app purchases
Questions
Is Idioms and Slang Dictionary free?
Is Rap Dictionary free?
Which has better reviews, Idioms and Slang Dictionary or Rap Dictionary?
Do Idioms and Slang Dictionary or Rap Dictionary have ads?
Which is updated more often, Idioms and Slang Dictionary or Rap Dictionary?
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