# 사운드짐 vs Yollo

The clearest difference is rating: Yollo at 5.0 against 사운드짐's 4.7. 사운드짐's advantage is review sentiment (82% vs 74%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 사운드짐 sells 6 in-app purchases, starting at $7.99 per month and Yollo sells 2 in-app purchases, starting at $39.99 per year. Whichever you choose, the download price is not the number that matters.

Yollo holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 19 and 15 respectively. Written reviews complicate that: 82% of 사운드짐's written reviews are positive against 74% of Yollo's, so the app with the better star average is not the one people write more warmly about.

사운드짐 ships an update every 3 weeks, Yollo every 4 weeks. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 사운드짐 | Yollo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (19 ratings)](https://appshunter.io/ios/app/id1435863215/reviews) | **[5.0 (15 ratings)](https://appshunter.io/ios/app/yollo-interval-running-timer/id1590839504/reviews)** |
| Number of ratings | **19** | 15 |
| Positive reviews | **82.4% of reviews** | 74.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 72 MB | 203 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [SOUNDGYM](https://appshunter.io/developer/1435863214) | [Studio Y Inc.](https://appshunter.io/developer/1703721561) |

## What reviewers say

### 사운드짐

[App page](https://appshunter.io/ios/app/id1435863215)

This app offers a comprehensive fitness experience with a wide range of workout content, including Pilates, yoga, and strength training. It provides personalized coaching through audio and video, challenges to encourage consistency, and guidance on using home gym equipment. Integrates with Apple Health.

**Highlights:** Diverse workout library (Pilates, yoga, strength), Personalized audio/video coaching, Fitness challenges for consistency, Home gym equipment usage guides, Apple Health integration, Body part and situation-specific workouts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1개월 | $7.99 | per month |
| 3개월 | $15.99 | per 3 months |
| 6개월 | $28.99 | per 6 months |
| 1년 | $48.99 | per year |
| 1년 | $51.99 | per year |
| 1년 | $73.99 | per year |


### Yollo

[App page](https://appshunter.io/ios/app/yollo-interval-running-timer/id1590839504)

This app helps you create custom interval running routines with adjustable voice guidance. It also features social connections, appointment scheduling for runs, and integration with health data.

**Highlights:** Customizable interval running courses, Adjustable voice guidance frequency, Music playback without interruption, Run appointment scheduling, Follow nearby runners, Direct messaging with connections

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $39.99 | per year |
| Coach | $1.99 | one-time |


## Frequently asked questions

### Is 사운드짐 free?

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

### Is Yollo free?

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

### Which has better reviews, 사운드짐 or Yollo?

Yollo is rated higher. 사운드짐 averages 4.7 out of 5 from 19 ratings, while Yollo averages 5.0 from 15 ratings.

### Do 사운드짐 or Yollo have ads?

Neither 사운드짐 nor Yollo shows ads.

### Which is updated more often, 사운드짐 or Yollo?

사운드짐 ships an update every 3 weeks, and Yollo every 4 weeks. Most recently, 사운드짐 was updated on October 15, 2026 and Yollo on October 16, 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.*