# Grumpy Sharky vs 乗り過ごし防止アラーム

The clearest difference is ads: 乗り過ごし防止アラーム at none against Grumpy Sharky's shown. Grumpy Sharky's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, update cadence and in-app purchases there is nothing between them.

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

Grumpy Sharky ships an update every 2 days, 乗り過ごし防止アラーム every 4 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Grumpy Sharky | 乗り過ごし防止アラーム |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 136 MB | 29 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Longhong Chiang](https://appshunter.io/developer/1698889494) | [taishin miyamoto](https://appshunter.io/developer/1570395608) |

## What reviewers say

### Grumpy Sharky

[App page](https://appshunter.io/ios/app/grumpy-sharky-stop-alarm/id6759364258)

**Features:** macOS Compatibility

**In-app purchases:** none


### 乗り過ごし防止アラーム

[App page](https://appshunter.io/ios/app/neo/id6762513606)

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

**In-app purchases:** none


## Frequently asked questions

### Is Grumpy Sharky free?

Grumpy Sharky is free to download, with no in-app purchases.

### Is 乗り過ごし防止アラーム free?

乗り過ごし防止アラーム is free to download, with no in-app purchases.

### Do Grumpy Sharky or 乗り過ごし防止アラーム have ads?

Grumpy Sharky shows ads; 乗り過ごし防止アラーム does not.

### Which is updated more often, Grumpy Sharky or 乗り過ごし防止アラーム?

Grumpy Sharky ships an update every 2 days, and 乗り過ごし防止アラーム every 4 days. Most recently, Grumpy Sharky was updated on November 9, 2026 and 乗り過ごし防止アラーム on October 31, 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.*