# 잇싸 vs muster

The clearest difference is rating: 잇싸 at 5.0 against muster's 3.7. muster's advantage is update cadence (every 2 days vs every 2 months). On price, ratings volume, 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.

잇싸 holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

잇싸 ships an update every 2 months, muster every 2 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 잇싸 | muster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/id1662302993/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/muster/id6816097897/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | — | Free |
| Size | 83 MB | 29 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Mir Media Strategy Research Institute Co., Ltd.](https://appshunter.io/developer/1662302995) | [HATCH COLLECTIBLES](https://appshunter.io/developer/6816097899) |

## What reviewers say

### 잇싸

[App page](https://appshunter.io/ios/app/id1662302993)

**Features:** macOS Compatibility

**In-app purchases:** none


### muster

[App page](https://appshunter.io/ios/app/muster/id6816097897)

This app helps card collectors manage their collections, discover upcoming shows and events, and track the value of their cards. It allows users to digitally display their favorite cards and find local card shops.

**Highlights:** Discover card shows and events, Digitally display and showcase cards, Track card collection value, Find nearby card shops, Connect with other collectors, Report and block users

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

**In-app purchases:** none


## Frequently asked questions

### Is 잇싸 free?

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

### Is muster free?

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

### Which has better reviews, 잇싸 or muster?

잇싸 is rated higher. 잇싸 averages 5.0 out of 5 from 4 ratings, while muster averages 3.7 from 3 ratings.

### Do 잇싸 or muster have ads?

Neither 잇싸 nor muster shows ads.

### Which is updated more often, 잇싸 or muster?

잇싸 ships an update every 2 months, and muster every 2 days. Most recently, 잇싸 was updated on November 3, 2026 and muster on November 6, 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.*