# Math Champ (Client) vs Bullet Train "Shinkansen" GO2

The clearest difference is rating: Bullet Train "Shinkansen" GO2 at 5.0 against Math Champ (Client)'s 3.4. Bullet Train "Shinkansen" GO2 also leads on update cadence (every 14 months vs every 30 months). Math Champ (Client)'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bullet Train "Shinkansen" GO2 holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Math Champ (Client) has 8 ratings behind it against 1, so its average is the more settled of the two.

Math Champ (Client) ships an update every 30 months, Bullet Train "Shinkansen" GO2 every 14 months. The most recent releases landed on June 5, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Math Champ (Client) | Bullet Train "Shinkansen" GO2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (8 ratings)](https://appshunter.io/ios/app/math-champ-client/id516219415/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bullet-train-shinkansen-go2/id1176430143/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 30 months | **Every 14 months** |
| Monetization | **Free** | Ad-supported |
| Size | 38 MB | 209 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INKids Education LLC](https://appshunter.io/developer/999335198) | [Optiax](https://appshunter.io/developer/859825691) |

## What reviewers say

### Math Champ (Client)

[App page](https://appshunter.io/ios/app/math-champ-client/id516219415)

This app acts as a controller for a classroom math quiz game, allowing students to compete against each other in real-time. It works alongside a separate host application to deliver randomized math questions and track scores for players in grades 4-7.

**Highlights:** Real-time multiplayer math quizzes, Acts as a game controller, Randomized questions from thousands, Supports iPhone, iPad, and iPod Touch, Bonus points for speed and streaks, Designed for grades 4-7

**Features:** macOS Compatibility

**In-app purchases:** none


### Bullet Train "Shinkansen" GO2

[App page](https://appshunter.io/ios/app/bullet-train-shinkansen-go2/id1176430143)

This interactive game is designed for young children who love trains. It features various Shinkansen models that react to touch with music and movement, offering a fun and engaging way to entertain babies and toddlers. The app aims to soothe crying children and make travel more enjoyable.

**Highlights:** Interactive Shinkansen train models, Touch-based music and sound effects, Two engaging game modes, Variety of popular train designs, Designed for babies and young children, Helps soothe and entertain toddlers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math Champ (Client) free?

Math Champ (Client) is free to download, with no in-app purchases.

### Is Bullet Train "Shinkansen" GO2 free?

Bullet Train "Shinkansen" GO2 is free to download, with no in-app purchases.

### Which has better reviews, Math Champ (Client) or Bullet Train "Shinkansen" GO2?

Bullet Train "Shinkansen" GO2 is rated higher. Math Champ (Client) averages 3.4 out of 5 from 8 ratings, while Bullet Train "Shinkansen" GO2 averages 5.0 from 1 ratings.

### Do Math Champ (Client) or Bullet Train "Shinkansen" GO2 have ads?

Bullet Train "Shinkansen" GO2 shows ads; Math Champ (Client) does not.

### Which is updated more often, Math Champ (Client) or Bullet Train "Shinkansen" GO2?

Math Champ (Client) ships an update every 30 months, and Bullet Train "Shinkansen" GO2 every 14 months. Most recently, Math Champ (Client) was updated on June 5, 2026 and Bullet Train "Shinkansen" GO2 on September 10, 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.*