Codex4 vs Emoji Math
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/
Emoji Math
This app offers a playful math learning experience for children PreK to Grade 5. It replaces traditional methods with engaging games to build confidence and master arithmetic concepts like counting, addition, subtraction, multiplication, and division.
- Math games for PreK to Grade 5
- Counting and number sense
- Addition and subtraction
- Place value understanding
- Multiplication mastery
- Basic division skills
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Emoji Math is the ultimate math adventure designed specifically to build confidence and skills for children from Preschool (PreK) through Grade 5. We ditch the dull flashcards and endless worksheets, replacing them with a vibrant, playful learning experience that kids genuinely ask to play. Watch your child transform homework anxiety into excitement as they master essential arithmetic concepts through engaging, visually rich games. Preschool (PreK) & Kindergarten Counting & Number Sense: Simple ocounting up to 100. Grades 1 & 2 Core Addition & Subtraction: Mastering single and double-digit operations. Place Value: Understanding tens, ones and hundreds. Grades 3, 4, & 5 Multiplication Mastery: Understanding and Memorizing times. Basic Division: Understanding introductory division facts.
Screenshots
Verdict
Codex4 and Emoji Math both sit at 5.0 stars, but that hides the real split: 100% of Emoji Math's written reviews are positive against 50% of Codex4's. Emoji Math also leads on in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.6). Codex4's advantage is price (Free vs $2.99). On rating, ratings volume, ads and device support 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
Codex4 is free to download; Emoji Math costs $2.99 up front. Codex4 sells 4 in-app purchases, starting at $12.99 per month. Emoji Math 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 Emoji Math. 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 Emoji Math's.
| Parameter | Codex4 | Emoji Math |
|---|---|---|
| Price | Free — better | $2.99 |
| 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 | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonas Richner | Step Up Learning Labs |
Customer experience
Codex4
Emoji Math
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
Emoji Math
No in-app purchases
Questions
Is Codex4 free?
Is Emoji Math free?
Which has better reviews, Codex4 or Emoji Math?
Do Codex4 or Emoji Math have ads?
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