# 유심사 vs B

The clearest difference is iOS requirement: 유심사 at 15 against B's 17.0. 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.

유심사 ships an update weekly, B every 9 days. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 유심사 | B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (32 ratings)](https://appshunter.io/ios/app/esim/id1635360522/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 98.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free | — |
| Size | 119 MB | 208 MB |
| Requires iOS | **15** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [gadgetkorea](https://appshunter.io/developer/1635360524) | [bora jin](https://appshunter.io/developer/1873302174) |

## What reviewers say

### 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


### B

[App page](https://appshunter.io/ios/app/b/id6791943301)

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

**In-app purchases:** none


## Frequently asked questions

### Is 유심사 free?

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

### Is B free?

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

### Do 유심사 or B have ads?

Neither 유심사 nor B shows ads.

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

유심사 ships an update weekly, and B every 9 days. Most recently, 유심사 was updated on October 16, 2026 and B on October 12, 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.*