# 4 Plus 4 vs Math Gremlin

The clearest difference is rating: 4 Plus 4 at 5.0 against Math Gremlin's 3.8. 4 Plus 4 also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). Math Gremlin's advantage is ratings volume (4 vs 1). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. 4 Plus 4 sells 1 one-off in-app purchase and Math Gremlin sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

4 Plus 4 holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

4 Plus 4 ships an update monthly, Math Gremlin every 2 months. The most recent releases landed on September 29, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 4 Plus 4 | Math Gremlin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/4-plus-4/id1602292243/reviews)** | [3.8 (4 ratings)](https://appshunter.io/ios/app/math-gremlin-math-video-game/id6445924683/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 90 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Koehnen](https://appshunter.io/developer/431219217) | [Blue Water Apps, LLC](https://appshunter.io/developer/1541160065) |

## What reviewers say

### 4 Plus 4

[App page](https://appshunter.io/ios/app/4-plus-4/id1602292243)

This app offers a clear, step-by-step approach to learning mathematics. It features structured modules for number basics, arithmetic, and fractions, with playful sections to apply learned concepts. Designed to make math understandable and enjoyable, it's ideal for beginners and for refreshing knowledge.

**Highlights:** Clear learning modules, Step-by-step guidance, Structured practice, Playful application sections, Progress tracking, Ad-free experience

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Inclusive | $1.99 | one-time |


### Math Gremlin

[App page](https://appshunter.io/ios/app/math-gremlin-math-video-game/id6445924683)

This game makes learning basic math fun by having players guide a character through challenges to find numbers that add up to a target sum before time expires. Levels increase in difficulty, offering replayability with unique problems each time. In-game currency can be earned or purchased to enhance gameplay.

**Highlights:** Number addition puzzles, Time-based challenges, Progressive difficulty levels, Replayable unique problems, In-game currency for boosts, Character customization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25,000 Coins | $0.99 | one-time |
| 100,000 Coins | $2.99 | one-time |
| 500,000 Coins | $9.99 | one-time |


## Frequently asked questions

### Is 4 Plus 4 free?

4 Plus 4 is free to download, with in-app purchases available.

### Is Math Gremlin free?

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

### Which has better reviews, 4 Plus 4 or Math Gremlin?

4 Plus 4 is rated higher. 4 Plus 4 averages 5.0 out of 5 from 1 ratings, while Math Gremlin averages 3.8 from 4 ratings.

### Do 4 Plus 4 or Math Gremlin have ads?

Math Gremlin shows ads; 4 Plus 4 does not.

### Which is updated more often, 4 Plus 4 or Math Gremlin?

4 Plus 4 ships an update monthly, and Math Gremlin every 2 months. Most recently, 4 Plus 4 was updated on September 29, 2026 and Math Gremlin on October 14, 2026.

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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.*