# 유심사 vs 울룰루

The clearest difference is update cadence: 유심사 at weekly against 울룰루's every 3 weeks. 유심사 also leads on iOS requirement (15 vs 18.4). On price, review sentiment, 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, 울룰루 every 3 weeks. Both last shipped on September 23, 2026.

## The numbers

| Metric | 유심사 | 울룰루 |
| --- | --- | --- |
| 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** | 91.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 119 MB | 20 MB |
| Requires iOS | **15** | 18.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [gadgetkorea](https://appshunter.io/developer/1635360524) | [울룰루 주식회사](https://appshunter.io/developer/1810128039) |

## 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


### 울룰루

[App page](https://appshunter.io/ios/app/id6744953536)

Plan trips, organize itineraries, store vouchers, and record memories. Connect with like-minded travelers to embark on journeys together. From the start to the end of your travels, and new connections, all in one place.

**Highlights:** Create travel itineraries, Organize daily courses and budgets, Store and access travel vouchers, Track travel expenses, Discover travel information and tips, Connect with fellow travelers, Automatically organize travel history from photos

**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 울룰루 free?

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

### Do 유심사 or 울룰루 have ads?

Neither 유심사 nor 울룰루 shows ads.

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

유심사 ships an update weekly, and 울룰루 every 3 weeks. Most recently, 유심사 was updated on September 23, 2026 and 울룰루 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.*