Comparison

Codex4 vs Flashy Vocabulary

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

Head to head
About

Codex4

Build a usable vocabulary for your job, studies, or hobbies with smart, spaced repetition reviews. Master real word usage and track your progress with clear statistics. Designed for serious learners with a clean interface and no gimmicks.

Highlights
  • Add custom words from any text
  • Spaced repetition reviews (FSRS)
  • Master word lemmas and conjugations
  • Clear progress statistics
  • Automatic word extraction
  • Data export and offline access
Features
Read full description

Get fluent faster by learning the words you actually use. Codex4 helps you build a usable vocabulary and keep it for the long term. - Learn what you need: Add your own words from any text in one tap. Build vocabulary for your job, studies, or hobbies. - Retain more with less effort: Reviews are timed by FSRS (a modern spaced-repetition model) so you study exactly when it counts. - Master real usage: The app treats each word as a lemma, so forms and conjugations are covered naturally as you progress. - Stay organized and motivated: Clear stats show what’s due, what’s known, and what’s next. - Bring any content: Automatic word extraction and a context-aware lemmatizer handle homonyms and multi-word phrases. - Your data stays yours: Keep access to review even after unsubscribing, and export your words and learning data anytime. - No gimmicks: Fast sessions, clean design, built for serious learners. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Flashy Vocabulary

Master French vocabulary with AI-powered flashcards. Learn real-world expressions, slang, and idioms with cultural context and smart review tools. Build a daily habit and track your progress to speak French naturally.

Highlights
  • AI-powered flashcards
  • Native-style examples
  • Cultural context and slang
  • Smart review tools
  • Progress tracking
  • Community word feed
Features
Read full description

Learn French the way people actually speak. Flashy helps you build real French vocabulary with beautiful AI flashcards, native-style examples, cultural context, slang, idioms, and smart review tools that make words stick. Whether you're learning your first French phrases or collecting the kind of expressions natives actually use, Flashy turns every word into a rich, memorable card you’ll want to come back to. Why Flashy works Add any French word or phrase and get an instant flashcard Add a word in English and Flashy turns it into the French card Learn with real examples: formal, everyday, and street/online Understand meaning fast with translation, nuance, and context Discover slang, idioms, word combinations, and related expressions See cultural context that helps you sound natural, not textbook Save words to your collection and review them anytime Practice with quizzes and spaced repetition Track your streak and build a daily French habit Explore words added by the community in the live feed Built for real-life French Flashy is made for learners who want more than boring vocabulary lists. Instead of memorizing isolated translations, you learn how words feel, where they’re used, and what they actually mean in modern French. From beginner essentials to slang, idioms, and expressions, Flashy helps you grow your French vocabulary faster and remember it longer. Perfect for French beginners Intermediate learners who want natural vocabulary Travelers, expats, and students Anyone who loves flashcards, language learning, and smart study tools Start building your French vocabulary with flashcards that actually make sense. --- Privacy Policy: https://delirious-night-e6b.notion.site/Flashy-Privacy-Policy-Last-updated-2025-08-12-24d4a187fe1980459739ea3eeb887c88 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Codex44 screens
Flashy Vocabulary4 screens

Verdict

The call

The clearest difference is update cadence: Codex4 at every 4 days against Flashy Vocabulary's every 9 days. On price, rating, ratings volume and ads 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

Both are free to download. Codex4 sells 4 in-app purchases, starting at $12.99 per month and Flashy Vocabulary sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Codex4 against 5.0 for Flashy Vocabulary. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Codex4 ships an update every 4 days, Flashy Vocabulary every 9 days. The most recent releases landed on September 17, 2026 and September 8, 2026 respectively.

Scorecard1 real difference · 9 level
Codex4 versus Flashy Vocabulary: the parameters behind the verdict, then further details
ParameterCodex4Flashy Vocabulary
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews50.0% of reviews—
Number of ratings22
Update frequencyEvery 4 days — betterEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.0 — better
Further details — not scored
Size52 MB44 MB
Age rating4+4+
DeveloperJonas RichnerGabriela Garcia

Customer experience

Codex4

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Flashy Vocabulary

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Codex4

Subscriptions4
  • Basic$12.991 Month
  • Pro$14.001 Month
  • Basic Yearly7 Days trial$69.991 Year
Show 1 more
  • Pro Yearly3 Days trial$85.001 Year
2 purchases

Flashy Vocabulary

Subscriptions2
  • Flashy Monthly3 Days trial$2.991 Month
  • Flashy Premium3 Days trial$9.991 Month

Questions

Is Codex4 free?
Codex4 is free to download, with in-app purchases available.
Is Flashy Vocabulary free?
Flashy Vocabulary is free to download, with in-app purchases available.
Which has better reviews, Codex4 or Flashy Vocabulary?
Codex4 and Flashy Vocabulary are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do Codex4 or Flashy Vocabulary have ads?
Neither Codex4 nor Flashy Vocabulary shows ads.
Which is updated more often, Codex4 or Flashy Vocabulary?
Codex4 ships an update every 4 days, and Flashy Vocabulary every 9 days. Most recently, Codex4 was updated on September 17, 2026 and Flashy Vocabulary on September 8, 2026.

Other comparisons