# Codex4 vs Emoji Math

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.

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.

## The numbers

| Metric | Codex4 | Emoji Math |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/codex4-for-serious-study/id6743228019/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/emoji-math-fun-math-games/id6754045870/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | **Freemium** | Paid |
| Size | 52 MB | 92 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jonas Richner](https://appshunter.io/developer/1801973188) | [Step Up Learning Labs](https://appshunter.io/developer/1803446550) |

## What reviewers say

### Codex4

[App page](https://appshunter.io/ios/app/codex4-for-serious-study/id6743228019)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $12.99 | per month |
| Pro | $14.00 | per month |
| Basic Yearly | $69.99 | per year |
| Pro Yearly | $85.00 | per year |


### Emoji Math

[App page](https://appshunter.io/ios/app/emoji-math-fun-math-games/id6754045870)

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.

**Highlights:** Math games for PreK to Grade 5, Counting and number sense, Addition and subtraction, Place value understanding, Multiplication mastery, Basic division skills

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Codex4 free?

Codex4 is free to download, with in-app purchases available.

### Is Emoji Math free?

Emoji Math costs $2.99, with no in-app purchases.

### Which has better reviews, Codex4 or Emoji Math?

Codex4 and Emoji Math are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Codex4 or Emoji Math have ads?

Neither Codex4 nor Emoji Math shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*