# SLS vs M스위치

The clearest difference is review sentiment: M스위치 at 67% against SLS's 33%. M스위치 also leads on update cadence (every 2 months vs every 8 months). SLS's advantage is iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SLS ships an update every 8 months, M스위치 every 2 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | SLS | M스위치 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 13 MB | 38 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [IAP EDU](https://appshunter.io/developer/1545801777) | [(주)타임교육](https://appshunter.io/developer/515166300) |

## What reviewers say

### SLS

[App page](https://appshunter.io/ios/app/sls/id1545901734)

This is a smart application for Korean language learning, developed by IAP EDU. It offers an educational experience focused on mastering the Korean language.

**Highlights:** Korean language learning, Smart application, Educational content, Developed by IAP EDU

**Features:** macOS Compatibility

**In-app purchases:** none


### M스위치

[App page](https://appshunter.io/ios/app/m/id1546882566)

This app streamlines operations for educational institutions by offering mobile payment, non-contact attendance tracking with temperature integration, and cost-effective SMS services. It facilitates easy fee collection and communication with parents.

**Highlights:** Mobile fee collection, Non-contact smart thermometer integration, Live and recorded video lectures, Cost-effective SMS services, Parental notifications for attendance and temperature

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

**In-app purchases:** none


## Frequently asked questions

### Is SLS free?

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

### Is M스위치 free?

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

### Do SLS or M스위치 have ads?

Neither SLS nor M스위치 shows ads.

### Which is updated more often, SLS or M스위치?

SLS ships an update every 8 months, and M스위치 every 2 months. Most recently, SLS was updated on October 7, 2026 and M스위치 on September 28, 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.*