Codex4 vs YBZ Academy
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/
YBZ Academy
This app provides a structured learning experience with AI-powered tools to enhance your educational journey. Access video lessons, track your progress, and engage with an AI tutor for personalized guidance. Enroll in diverse courses to acquire new knowledge or sharpen existing skills.
- AI-powered learning tools
- Structured courses with video lessons
- Progress tracking
- AI tutor voice
- AI course question suggestions
- Course rating system
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YBZ Academy is your ultimate learning companion, offering a seamless and engaging experience for learners of all levels. Explore and enroll in a variety of structured courses, complete with video lessons, detailed descriptions, and progress tracking. Whether you want to sharpen your skills or gain new knowledge, YBZ Academy helps you learn smarter with the power of AI. AI-Powered Learning Tools AI Post Enhancement – Instantly refine your posts, assignments, and discussions. AI Tutor Voice – Get explanations and guidance from your interactive voice-based tutor. AI Course Question Suggestions – Practice smarter with AI-generated questions tailored to your courses. Other Key Features Quick & easy registration and login Browse and enroll in diverse courses Track your learning progress and mark lessons complete High-quality video lessons with detailed descriptions Star rating system to review and rate courses Powerful admin panel for smooth course management Learn. Track. Achieve. Download YBZ Academy today and take your learning journey to the next level! https://yoyo-academy-qxop.b12sites.com/Terms
Screenshots
Verdict
Codex4 and YBZ Academy both sit at 5.0 stars, but that hides the real split: 100% of YBZ Academy's written reviews are positive against 50% of Codex4's. YBZ Academy also leads on in-app purchases (none vs 4) and iOS requirement (13.4 vs 15.6). Codex4's advantage is update cadence (every 4 days vs every 5 months). 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
Both are free to download. Codex4 sells 4 in-app purchases, starting at $12.99 per month. YBZ Academy asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Codex4 against 5.0 for YBZ Academy. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 50% of Codex4's written reviews are positive against 100% of YBZ Academy's.
Codex4 ships an update every 4 days, YBZ Academy every 5 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | Codex4 | YBZ Academy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 52 MB | 28 MB |
| Age rating | 4+ | 17+ |
| Developer | Jonas Richner | YOYO BY ZAQ LLC |
Customer experience
Codex4
YBZ Academy
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
YBZ Academy
No in-app purchases
Questions
Is Codex4 free?
Is YBZ Academy free?
Which has better reviews, Codex4 or YBZ Academy?
Do Codex4 or YBZ Academy have ads?
Which is updated more often, Codex4 or YBZ Academy?
Other comparisons
