# Math Rings vs + &

The clearest difference is rating: + & at 5.0 against Math Rings's 4.2. + & also leads on iOS requirement (12.0 vs 15.0). Math Rings's advantage is in-app purchases (none vs 1). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. + & sells 1 one-off in-app purchase. Math Rings asks for nothing beyond the download.

+ & holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Math Rings ships an update every 20 months, + & every 10 months. The most recent releases landed on October 23, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Math Rings | + & |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/math-rings/id491846200/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/plus-and-a-zen-game/id880084583/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 10 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 4 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rajinder Singh](https://appshunter.io/developer/481138169) | [Marco Locatelli](https://appshunter.io/developer/380883258) |

## What reviewers say

### Math Rings

[App page](https://appshunter.io/ios/app/math-rings/id491846200)

This mathematics game presents puzzles with simple number equations arranged in a circular system. Players rearrange cells to solve equations, with solved rows turning green. Puzzles are rated based on completion speed.

**Highlights:** Simple number equations, Circular cell arrangement, Solve equations in multiple directions, 99 levels with unlimited puzzles, Star rating based on speed

**Features:** macOS Compatibility

**In-app purchases:** none


### + &

[App page](https://appshunter.io/ios/app/plus-and-a-zen-game/id880084583)

A strategic puzzle game with a Zen-like feel. Combine numbers based on their color and value to achieve the highest score. Save multiple games simultaneously and unlock special abilities as you progress.

**Highlights:** Strategic number addition and subtraction, Save and manage multiple games, Unlockable number swapping ability, Customizable board and UI colors, Zen-like gameplay experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Change The Number | $0.99 | one-time |


## Frequently asked questions

### Is Math Rings free?

Math Rings is free to download, with no in-app purchases.

### Is + & free?

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

### Which has better reviews, Math Rings or + &?

+ & is rated higher. Math Rings averages 4.2 out of 5 from 5 ratings, while + & averages 5.0 from 2 ratings.

### Do Math Rings or + & have ads?

Neither Math Rings nor + & shows ads.

### Which is updated more often, Math Rings or + &?

Math Rings ships an update every 20 months, and + & every 10 months. Most recently, Math Rings was updated on October 23, 2026 and + & on October 13, 2026.

---

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