Comparison

Idiom vs COCA

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

Head to head
About

Idiom

Master new languages with real-world content. Learn vocabulary from trending news, practice listening with popular shows, and improve reading comprehension with books. Supports over 100 languages.

Highlights
  • Learn from trending news
  • Practice with popular shows
  • Build reading comprehension with books
  • Import custom content (websites, videos, ebooks, PDFs)
  • Camera mode for physical text
  • Supports over 100 languages
Features
Read full description

Get stuck learning a language? This app is for you. Idiom uses techniques from advanced language classes to get you fluent. - Work through trending news from around the world, researching the meaning of words and phrases until you master each sentence. - Watch popular shows, slowing and repeating until you can hear every syllable clearly. - Practice with a library of books, building your reading comprehension and speed. # Content Idiom recommends real-world content based on your interests and level, and you can also bring your own. The app can load most websites, youtube videos, epubs, and pdfs. There’s also a camera mode for things like paper books and instagram screenshots. # Premium Everything above is free. There’s also a premium mode that unlocks additional features: - Translate whole phrases and sentences - Natural text-to-speech for any written content - Remove ads from many websites You can try premium for 1 week for free, and if you like it keep using it for a monthly fee. # Supported languages Idiom supports learning more than 100 languages. Some of the most popular languages on Idiom are English, German, Spanish, French, Russian, Arabic, Italian, Dutch, Greek, Turkish, Japanese, Portuguese, Chinese, Korean, Indonesian, Vietnamese, Thai, Polish, Ukrainian, Hungarian, Farsi, Czech, Danish, Romanian, and Swedish. # Privacy policy and terms of service https://getidiom.com/privacy-policy/ https://getidiom.com/terms-of-service/

About

COCA

Features
Read full description

COCA – Vocabulary Learning for IELTS & TOEFL is a smart, interactive English learning app designed to help you master real-world vocabulary used by native speakers. Based on the Corpus of Contemporary American English (COCA), this app provides access to 16,515 essential words and turns vocabulary learning into an engaging, structured, and effective experience. COCA 5.0 is a complete vocabulary learning platform combining flashcards, quizzes, progress tracking, and AI-powered guidance to help you learn faster and remember longer. Key Features Dashboard Track your progress, learning streaks, and performance with clear statistics. Visualize your vocabulary growth over time. Flashcards Efficiently learn and review vocabulary with a smart flashcard system focused on repetition and retention. Word Browser Browse and search the full COCA word list with filters for fast and targeted learning. Quiz Mode Reinforce memory with interactive quizzes including multiple choice and recall tests. AI Tutor Get instant explanations, word usage examples, and contextual understanding powered by AI. Why COCA? Learn real-world English used in daily communication and academic settings Prepare efficiently for IELTS and TOEFL exams Improve long-term retention with smart repetition tools Track your learning journey with a personal dashboard Learn with AI assistance for faster understanding Upgrade to COCA 5.0 and start building your English vocabulary smarter, faster, and more effectively.

Screenshots

Idiom4 screens
COCA4 screens

Verdict

The call

The clearest difference is price: Idiom at Free against COCA's $1.99. COCA's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement 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

Idiom is free to download; COCA costs $1.99 up front. Idiom sells 3 in-app purchases, starting at $2.99 per month. COCA asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Idiom versus COCA: the parameters behind the verdict, then further details
ParameterIdiomCOCA
PriceFree — better$1.99
Rating4.8 (175 ratings) — better—
Positive reviews91.4% of reviews—
Number of ratings175 — better—
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size7 MB22 MB
Age rating12+4+
DeveloperThe Language CompanyQ.Z.L Corp.

In-app purchases

3 purchases

Idiom

Subscriptions3
  • Student7 Days trial$2.991 Month
  • Pro7 Days trial$4.991 Month
  • Patron7 Days trial$6.991 Month
None

COCA

No in-app purchases

Questions

Is Idiom free?
Idiom is free to download, with in-app purchases available.
Is COCA free?
COCA costs $1.99, with no in-app purchases.
Do Idiom or COCA have ads?
Neither Idiom nor COCA shows ads.

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