# ホイッスル vs スイスドロー

The clearest difference is in-app purchases: スイスドロー at none against ホイッスル's 2. スイスドロー also leads on update cadence (every 2 days vs every 10 days). ホイッスル's advantage is iOS requirement (15.0 vs 26.5). On price, ads and device support there is nothing between them.

Both are free to download. ホイッスル sells 2 in-app purchases, starting at $1.99 per month. スイスドロー asks for nothing beyond the download.

ホイッスル ships an update every 10 days, スイスドロー every 2 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ホイッスル | スイスドロー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | **Every 2 days** |
| Size | 14 MB | 5 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Naoki Yahata](https://appshunter.io/developer/1590150102) | [Shunsuke Kubo](https://appshunter.io/developer/6772584174) |

## What reviewers say

### ホイッスル

[App page](https://appshunter.io/ios/app/id6447121017)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $1.99 | per month |
| プレミアムプラン | $5.99 | per year |


### スイスドロー

[App page](https://appshunter.io/ios/app/id6794851808)

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

**In-app purchases:** none


## Frequently asked questions

### Is ホイッスル free?

ホイッスル is free to download, with in-app purchases available.

### Is スイスドロー free?

スイスドロー is free to download, with no in-app purchases.

### Do ホイッスル or スイスドロー have ads?

Both ホイッスル and スイスドロー show ads.

### Which is updated more often, ホイッスル or スイスドロー?

ホイッスル ships an update every 10 days, and スイスドロー every 2 days. Most recently, ホイッスル was updated on October 27, 2026 and スイスドロー on October 24, 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.*