Codex4 vs Bragi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
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.
- 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
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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
Verdict
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
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.
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.
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.
| Parameter | Codex4 | Bragi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.5 (164 ratings) |
| Positive reviews | 50.0% of reviews | 62.5% of reviews — better |
| Number of ratings | 2 | 164 — better |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonas Richner | Juan Carlos Plate |
Customer experience
Codex4
Bragi
In-app purchases
Codex4
- Basic$12.991 Month
- Pro$14.001 Month
- Basic Yearly7 Days trial$69.991 Year
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- Pro Yearly3 Days trial$85.001 Year
Bragi
- Full Access$6.997 Days
- Full Access$14.991 Month
- Full Access$69.991 Year








