# 1328宇宙導航 vs Grumpy Sharky

The clearest difference is in-app purchases: Grumpy Sharky at none against 1328宇宙導航's 8. Grumpy Sharky also leads on update cadence (every 2 days vs every 10 days). 1328宇宙導航's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 1328宇宙導航 sells 8 in-app purchases, starting at $2.99 per month. Grumpy Sharky asks for nothing beyond the download.

1328宇宙導航 ships an update every 10 days, Grumpy Sharky every 2 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | 1328宇宙導航 | Grumpy Sharky |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 2 days** |
| Size | 33 MB | 136 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PEI WEI SU](https://appshunter.io/developer/1872941190) | [Longhong Chiang](https://appshunter.io/developer/1698889494) |

## What reviewers say

### 1328宇宙導航

[App page](https://appshunter.io/ios/app/1328/id6758438094)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 護持方案（每月） | $2.99 | per month |
| 小額贊助 NT$50 | $1.99 | one-time |
| 小額贊助 | $2.99 | one-time |
| 擴充名冊 - 100位 | $2.99 | one-time |
| 擴充名冊 - 200位 | $5.99 | one-time |
| 擴充名冊 - 300位 | $7.99 | one-time |
| 小額贊助 | $9.99 | one-time |
| 開啟 1328 高維通道 | $9.99 | one-time |


### Grumpy Sharky

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 1328宇宙導航 free?

1328宇宙導航 is free to download, with in-app purchases available.

### Is Grumpy Sharky free?

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

### Do 1328宇宙導航 or Grumpy Sharky have ads?

Grumpy Sharky shows ads; 1328宇宙導航 does not.

### Which is updated more often, 1328宇宙導航 or Grumpy Sharky?

1328宇宙導航 ships an update every 10 days, and Grumpy Sharky every 2 days. Most recently, 1328宇宙導航 was updated on November 5, 2026 and Grumpy Sharky on November 9, 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.*