Comparison

Idioms and Slang Dictionary vs Resistor Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Definitions from top sources
  • History and origin of phrases
  • Example sentences
  • Voice search
  • Audio pronunciations
  • Bookmark favorite phrases
  • Advanced search options
Features
Read full description

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.

About

Resistor Reader

Easily determine resistor values directly from your wrist. Select color bands using the Digital Crown for quick identification. Requires Watch OS 9.0 or higher.

Highlights
  • Identify resistor values
  • Digital Crown selection
  • Color band input
  • Watch-based utility
Read full description

Resistor Reader for the Watch allows one to quickly determine a resistors's value by selecting the color bands using the Digital Crown on the watch. Requires Watch OS version 9.0 or higher.

Screenshots

Idioms and Slang Dictionary4 screens

Verdict

The call

The clearest difference is price: Idioms and Slang Dictionary at Free against Resistor Reader's $0.99. Idioms and Slang Dictionary also leads on ratings volume (1.1K vs 1). Resistor Reader's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

Idioms and Slang Dictionary is free to download; Resistor Reader costs $0.99 up front. Idioms and Slang Dictionary sells 1 one-off in-app purchase. Resistor Reader asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Resistor Reader holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Idioms and Slang Dictionary has 1.1K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Idioms and Slang Dictionary ships an update every 17 months, Resistor Reader every 11 months. The most recent releases landed on October 26, 2026 and October 3, 2026 respectively.

Scorecard7 real differences · 3 level
Idioms and Slang Dictionary versus Resistor Reader: the parameters behind the verdict, then further details
ParameterIdioms and Slang DictionaryResistor Reader
PriceFree — better$0.99
Rating4.7 (1.1K ratings)5.0 (1 ratings) — better
Positive reviews82.9% of reviews—
Number of ratings1.1K — better1
Update frequencyEvery 17 monthsEvery 11 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.013.0 — better
Further details — not scored
Size96 MB1 MB
Age rating12+4+
DeveloperFarlex, Inc.JONOTHON CONE

Customer experience

Idioms and Slang Dictionary

All ratings1,106 ratings
Positive93.7%
Neutral3.5%
Negative2.8%
Written reviews105 reviews
Positive82.9%
Neutral6.7%
Negative10.5%

Resistor Reader

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

Resistor Reader

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Idioms and Slang Dictionary

One-time1
  • Ad-free upgrade$4.99
None

Resistor Reader

No in-app purchases

Questions

Is Idioms and Slang Dictionary free?
Idioms and Slang Dictionary is free to download, with in-app purchases available.
Is Resistor Reader free?
Resistor Reader costs $0.99, with no in-app purchases.
Which has better reviews, Idioms and Slang Dictionary or Resistor Reader?
Resistor Reader is rated higher. Idioms and Slang Dictionary averages 4.7 out of 5 from 1.1K ratings, while Resistor Reader averages 5.0 from 1 ratings.
Do Idioms and Slang Dictionary or Resistor Reader have ads?
Idioms and Slang Dictionary shows ads; Resistor Reader does not.
Which is updated more often, Idioms and Slang Dictionary or Resistor Reader?
Idioms and Slang Dictionary ships an update every 17 months, and Resistor Reader every 11 months. Most recently, Idioms and Slang Dictionary was updated on October 26, 2026 and Resistor Reader on October 3, 2026.

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