# Kyoukara vs ホワイトノイズ・環境音・睡眠BGM (音凪)

The clearest difference is ads: Kyoukara at none against ホワイトノイズ・環境音・睡眠BGM (音凪)'s shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Kyoukara sells 4 one-off in-app purchases and ホワイトノイズ・環境音・睡眠BGM (音凪) sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kyoukara ships an update every 5 days, ホワイトノイズ・環境音・睡眠BGM (音凪) every 9 days. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Kyoukara | ホワイトノイズ・環境音・睡眠BGM (音凪) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 9 days |
| Size | 20 MB | 148 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Starcrown Inc](https://appshunter.io/developer/1082624152) | [hiroaki suzuki](https://appshunter.io/developer/1477004044) |

## What reviewers say

### Kyoukara

[App page](https://appshunter.io/ios/app/kyoukara-sober-day-tracker/id6766026427)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kyoukara Tea Tip | $0.99 | one-time |
| Kyoukara Lunch Tip | $1.99 | one-time |
| Kyoukara Pro | $3.99 | one-time |
| Kyoukara Dinner Tip | $5.99 | one-time |


### ホワイトノイズ・環境音・睡眠BGM (音凪)

[App page](https://appshunter.io/ios/app/bgm/id6766044501)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otonagi Pro | $3.99 | one-time |


## Frequently asked questions

### Is Kyoukara free?

Kyoukara is free to download, with in-app purchases available.

### Is ホワイトノイズ・環境音・睡眠BGM (音凪) free?

ホワイトノイズ・環境音・睡眠BGM (音凪) is free to download, with in-app purchases available.

### Do Kyoukara or ホワイトノイズ・環境音・睡眠BGM (音凪) have ads?

ホワイトノイズ・環境音・睡眠BGM (音凪) shows ads; Kyoukara does not.

### Which is updated more often, Kyoukara or ホワイトノイズ・環境音・睡眠BGM (音凪)?

Kyoukara ships an update every 5 days, and ホワイトノイズ・環境音・睡眠BGM (音凪) every 9 days. Most recently, Kyoukara was updated on October 10, 2026 and ホワイトノイズ・環境音・睡眠BGM (音凪) on October 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*