Comparison

Codex4 vs Bragi

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

Bragi

Engage in realistic conversations with AI characters to improve your speaking skills from day one. Receive instant feedback on grammar, vocabulary, and pronunciation to build confidence in real-world scenarios. Track your progress and stay motivated with gamified learning elements.

Highlights
  • Real AI conversations
  • Instant AI tutor feedback
  • Daily real-life scenarios
  • Progress tracking and leveling
  • Gamified learning with achievements
  • Multiple language support
  • Mobile and web access
Features
Read full description

Talk your way to fluency. Bragi is the AI-powered language learning app designed to get you speaking from day one. Instead of memorizing flashcards or repeating scripted phrases, Bragi puts you into real conversations with intelligent AI characters that adapt to your level and help you improve naturally. Practice conversations, get instant feedback, and build real-world language confidence through immersive dialogue and interactive learning. Key Features • Real AI Conversations – Practice speaking with dynamic AI characters in realistic situations. Every conversation adapts to your level and responses. • Instant AI Tutor – Get real-time feedback on grammar, vocabulary, pronunciation, and phrasing so you learn while you speak. • Daily Scenarios – Practice real-life situations like ordering food, booking appointments, or making small talk. • Track Your Progress – Earn XP, level up your skills, maintain streaks, and watch your progress grow over time. • Gamified Learning – Unlock achievements, complete challenges, and stay motivated as you build consistent learning habits. • Multiple Languages – Improve your skills across different languages with conversations tailored to real-life use. • Learn Anywhere – Bragi works across mobile and web so you can practice whenever inspiration strikes. Why Bragi? Most language apps focus on memorization. Bragi focuses on communication. By combining AI-powered conversations, personalized tutoring, and engaging progression systems, Bragi helps you move beyond vocabulary drills and start speaking confidently in real situations. Start your journey today and turn practice into real fluency. A free download is available. Full access to Bragi’s features requires a subscription. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Codex44 screens
Bragi4 screens

Verdict

The call

The clearest difference is rating: Codex4 at 5.0 against Bragi's 4.5. Codex4 also leads on update cadence (every 4 days vs every 3 weeks). Bragi's advantage is ratings volume (164 vs 2) and review sentiment (63% vs 50%). On price, ads, in-app purchases and monetization model 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 Bragi sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Codex4 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Bragi has 164 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of Codex4's written reviews are positive against 63% of Bragi's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Codex4 ships an update every 4 days, Bragi every 3 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

Scorecard4 real differences · 6 level
Codex4 versus Bragi: the parameters behind the verdict, then further details
ParameterCodex4Bragi
PriceFreeFree
Rating5.0 (2 ratings) — better4.5 (164 ratings)
Positive reviews50.0% of reviews62.5% of reviews — better
Number of ratings2164 — better
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size52 MB42 MB
Age rating4+4+
DeveloperJonas RichnerJuan Carlos Plate

Customer experience

Codex4

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

Bragi

All ratings164 ratings
Positive87.2%
Neutral5.5%
Negative7.3%
Written reviews8 reviews
Positive62.5%
Neutral0.0%
Negative37.5%

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
3 purchases

Bragi

Subscriptions3
  • Full Access$6.997 Days
  • Full Access$14.991 Month
  • Full Access$69.991 Year

Questions

Is Codex4 free?
Codex4 is free to download, with in-app purchases available.
Is Bragi free?
Bragi is free to download, with in-app purchases available.
Which has better reviews, Codex4 or Bragi?
Codex4 is rated higher. Codex4 averages 5.0 out of 5 from 2 ratings, while Bragi averages 4.5 from 164 ratings.
Do Codex4 or Bragi have ads?
Neither Codex4 nor Bragi shows ads.
Which is updated more often, Codex4 or Bragi?
Codex4 ships an update every 4 days, and Bragi every 3 weeks. Most recently, Codex4 was updated on September 17, 2026 and Bragi on September 23, 2026.

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