# 카찹 vs 유심사

The clearest difference is ads: 유심사 at none against 카찹's shown. 유심사 also leads on rating (4.9 vs 4.7) and monetization model (free vs ad-supported). On price, ratings volume, update cadence 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.

유심사 holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 12 and 32 respectively.

카찹 ships an update every 6 days, 유심사 weekly. The most recent releases landed on September 14, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 카찹 | 유심사 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (12 ratings)](https://appshunter.io/ios/app/1/id1506198003/reviews) | **[4.9 (32 ratings)](https://appshunter.io/ios/app/esim/id1635360522/reviews)** |
| Number of ratings | 12 | **32** |
| Positive reviews | — | 98.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Ad-supported | **Free** |
| Size | 216 MB | 119 MB |
| Requires iOS | 16.2 | **15** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Carchap-H2Care Korea Corporation](https://appshunter.io/developer/1506198002) | [gadgetkorea](https://appshunter.io/developer/1635360524) |

## What reviewers say

### 카찹

[App page](https://appshunter.io/ios/app/1/id1506198003)

Find carpool or taxi-sharing mates for commutes, university, travel, or events. Offers real-name and driver verification for safety, with search filters and route notifications. Facilitates in-app chat and cashless payments.

**Highlights:** Real-name and driver verification, Search and filter by destination, date, keyword, Route notifications for similar journeys, In-app chat for communication, Shareable carpool links, Cashless payments via Carchap Pay, Find shared scooters, bikes, and car-sharing zones

**In-app purchases:** none


### 유심사

[App page](https://appshunter.io/ios/app/esim/id1635360522)

This app provides global eSIM and USIM roaming services, offering competitive prices and convenient activation worldwide. Enjoy daily benefits, data management, and 24/7 customer support for a seamless travel experience.

**Highlights:** Global lowest prices, eSIM/USIM purchase and activation, Daily benefits and offers, Data usage tracking and top-up, 24/7 customer support, Easy eSIM installation

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

**In-app purchases:** none


## Frequently asked questions

### Is 카찹 free?

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

### Is 유심사 free?

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

### Which has better reviews, 카찹 or 유심사?

유심사 is rated higher. 카찹 averages 4.7 out of 5 from 12 ratings, while 유심사 averages 4.9 from 32 ratings.

### Do 카찹 or 유심사 have ads?

카찹 shows ads; 유심사 does not.

### Which is updated more often, 카찹 or 유심사?

카찹 ships an update every 6 days, and 유심사 weekly. Most recently, 카찹 was updated on September 14, 2026 and 유심사 on September 23, 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.*