# School Bus vs Bubble Grotto

The clearest difference is update cadence: School Bus at monthly against Bubble Grotto's every 3 months. On price, ads, 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.

School Bus ships an update monthly, Bubble Grotto every 3 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | School Bus | Bubble Grotto |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Size | 312 MB | 187 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shaikh M Shaheel Shahzad](https://appshunter.io/developer/1439193657) | [John McArthur](https://appshunter.io/developer/1833458858) |

## What reviewers say

### School Bus

[App page](https://appshunter.io/ios/app/school-bus-driving-simulator/id6476541365)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bubble Grotto

[App page](https://appshunter.io/ios/app/bubble-grotto-physics-arcade/id6758051897)

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

**In-app purchases:** none


## Frequently asked questions

### Is School Bus free?

School Bus is free to download, with no in-app purchases.

### Is Bubble Grotto free?

Bubble Grotto is free to download, with no in-app purchases.

### Do School Bus or Bubble Grotto have ads?

Both School Bus and Bubble Grotto show ads.

### Which is updated more often, School Bus or Bubble Grotto?

School Bus ships an update monthly, and Bubble Grotto every 3 months. Most recently, School Bus was updated on October 27, 2026 and Bubble Grotto on October 28, 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.*