# Y vs ホイッスル

The clearest difference is in-app purchases: Y at none against ホイッスル's 2. Y also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). ホイッスル's advantage is update cadence (every 10 days vs every 2 months). On price 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. Y asks for nothing beyond the download.

Y ships an update every 2 months, ホイッスル every 10 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Y | ホイッスル |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 8 MB | 14 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Youness Software Co., Ltd.](https://appshunter.io/developer/400883820) | [Naoki Yahata](https://appshunter.io/developer/1590150102) |

## What reviewers say

### Y

[App page](https://appshunter.io/ios/app/y-turn/id439838722)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Y free?

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

### Is ホイッスル free?

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

### Do Y or ホイッスル have ads?

ホイッスル shows ads; Y does not.

### Which is updated more often, Y or ホイッスル?

Y ships an update every 2 months, and ホイッスル every 10 days. Most recently, Y was updated on October 3, 2026 and ホイッスル on October 6, 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.*