# 구스트 vs SleepisolC

The clearest difference is review sentiment: SleepisolC at 100% against 구스트's 67%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

구스트 ships an update every 3 weeks, SleepisolC every 5 weeks. The most recent releases landed on September 21, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | 구스트 | SleepisolC |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 18 MB | 210 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CodeGuts Co., Ltd](https://appshunter.io/developer/1627967333) | [leesol](https://appshunter.io/developer/1584929445) |

## What reviewers say

### 구스트

[App page](https://appshunter.io/ios/app/goost/id1561098183)

This platform allows users to easily book golf lessons and studio time. View available studios and pros, purchase passes, and manage your schedule all in one place. Track your swing data and share it with instructors for analysis.

**Highlights:** Dashboard for events, studios, and schedules, Studio booking and pass purchase, Pro golfer profiles and lesson booking, TrackMan swing data integration, My Page for purchase and reservation history

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

**In-app purchases:** none


### SleepisolC

[App page](https://appshunter.io/ios/app/sleepisolc/id6738976438)

This app offers customized sound therapy and versatile modes like sleep, stress relief, and focus. It connects seamlessly with a dedicated device to help users achieve a healthier lifestyle through improved sleep and mental well-being.

**Highlights:** Customizable intensity and time settings, Multiple modes: sleep, stress, healing, focus, Binaural beats sound therapy, Automatic device connection, User-friendly interface

**In-app purchases:** none


## Frequently asked questions

### Is 구스트 free?

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

### Is SleepisolC free?

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

### Do 구스트 or SleepisolC have ads?

Neither 구스트 nor SleepisolC shows ads.

### Which is updated more often, 구스트 or SleepisolC?

구스트 ships an update every 3 weeks, and SleepisolC every 5 weeks. Most recently, 구스트 was updated on September 21, 2026 and SleepisolC on June 5, 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.*