# 잘자, 수면에 특화된 음악 및 가이드 앱 vs 루미

The clearest difference is ads: 잘자, 수면에 특화된 음악 및 가이드 앱 at none against 루미's shown. 잘자, 수면에 특화된 음악 및 가이드 앱 also leads on iOS requirement (13.0 vs 15.1). 루미's advantage is update cadence (every 11 days vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 잘자, 수면에 특화된 음악 및 가이드 앱 sells 4 in-app purchases, starting at $2.99 per month and 루미 sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

잘자, 수면에 특화된 음악 및 가이드 앱 ships an update every 2 months, 루미 every 11 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 잘자, 수면에 특화된 음악 및 가이드 앱 | 루미 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6757296520/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | — | Subscription |
| Size | 56 MB | 121 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sound Platform Co., Ltd.](https://appshunter.io/developer/1601753261) | [Jae Chan Lee](https://appshunter.io/developer/1865823608) |

## What reviewers say

### 잘자, 수면에 특화된 음악 및 가이드 앱

[App page](https://appshunter.io/ios/app/id6446684455)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Membership | $2.99 | per month |
| Yearly Premium Membership | $22.99 | per year |
| Zalza 7 days Ticket | $0.99 | one-time |
| Zalza 30 days Ticket | $1.99 | one-time |


### 루미

[App page](https://appshunter.io/ios/app/id6757296520)

This app helps improve sleep by addressing the root causes of insomnia, focusing on changing habits and thoughts rather than relying on temporary aids. It offers personalized programs based on sleep psychology, daily journaling, and detailed sleep reports to help users understand and fundamentally improve their sleep patterns.

**Highlights:** Sleep psychology-based programs, Sleep status surveys, Daily sleep journaling, Sleep reports with feedback, Personalized sleep routines

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 스타터 | $9.99 | one-time |
| 루미 코어 | $29.99 | one-time |
| 루미 인텐시브 | $59.99 | one-time |


## Frequently asked questions

### Is 잘자, 수면에 특화된 음악 및 가이드 앱 free?

잘자, 수면에 특화된 음악 및 가이드 앱 is free to download, with in-app purchases available.

### Is 루미 free?

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

### Do 잘자, 수면에 특화된 음악 및 가이드 앱 or 루미 have ads?

루미 shows ads; 잘자, 수면에 특화된 음악 및 가이드 앱 does not.

### Which is updated more often, 잘자, 수면에 특화된 음악 및 가이드 앱 or 루미?

잘자, 수면에 특화된 음악 및 가이드 앱 ships an update every 2 months, and 루미 every 11 days. Most recently, 잘자, 수면에 특화된 음악 및 가이드 앱 was updated on November 3, 2026 and 루미 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.*