# Mathrax vs Synrey Bridge

The clearest difference is review sentiment: Mathrax at 100% against Synrey Bridge's 0%. Mathrax also leads on rating (5.0 vs 3.8). Synrey Bridge's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 5 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Mathrax sells 1 one-off in-app purchase and Synrey Bridge sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Mathrax holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Synrey Bridge has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Mathrax's written reviews are positive against 0% of Synrey Bridge's.

Mathrax ships an update every 5 months, Synrey Bridge every 6 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mathrax | Synrey Bridge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mathrax-sudoku-and-maths/id645221113/reviews)** | [3.8 (13 ratings)](https://appshunter.io/ios/app/synrey-bridge/id1180481960/reviews) |
| Number of ratings | 1 | **13** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 52 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Stanley Lam](https://appshunter.io/developer/453164363) | [北京新睿桥科技有限公司](https://appshunter.io/developer/946323875) |

## What reviewers say

### Mathrax

[App page](https://appshunter.io/ios/app/mathrax-sudoku-and-maths/id645221113)

This logic puzzle challenges you to fill grids with numbers based on specific mathematical and parity rules. It offers a vast amount of content with multiple board sizes, difficulty levels, and over 500 unique levels. Features include automatic error highlighting, progress saving, and time tracking.

**Highlights:** Number placement logic puzzles, Mathematical operation conditions, Parity (even/odd) conditions, Multiple board sizes and difficulty levels, Over 500 unique levels, Automatic wrong number highlighting, Autosave unfinished levels, Best completion time recording

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Full Version | $0.99 | one-time |


### Synrey Bridge

[App page](https://appshunter.io/ios/app/synrey-bridge/id1180481960)

Engage in contract bridge matches and tournaments with intelligent AI or connect with players worldwide. Practice different game modes, challenge friends, and analyze your performance. Offers various bidding systems for a comprehensive bridge experience.

**Highlights:** Daily Pairs (MP/IMP), Beginner Practice modes, Online matches with AI or players, Chat with friends, Performance analysis, Multiple bidding systems

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 coins | $0.99 | one-time |
| 135 coins | $4.99 | one-time |
| 300 coins | $9.99 | one-time |
| 1650 coins | $49.99 | one-time |
| 3500 coins | $99.99 | one-time |


## Frequently asked questions

### Is Mathrax free?

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

### Is Synrey Bridge free?

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

### Which has better reviews, Mathrax or Synrey Bridge?

Mathrax is rated higher. Mathrax averages 5.0 out of 5 from 1 ratings, while Synrey Bridge averages 3.8 from 13 ratings.

### Do Mathrax or Synrey Bridge have ads?

Mathrax shows ads; Synrey Bridge does not.

### Which is updated more often, Mathrax or Synrey Bridge?

Mathrax ships an update every 5 months, and Synrey Bridge every 6 weeks. Most recently, Mathrax was updated on October 23, 2026 and Synrey Bridge on October 24, 2026.

---

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