# 이음 vs Yoi

The clearest difference is ads: 이음 at none against Yoi's shown. 이음 also leads on iOS requirement (12.1 vs 15.5). On price, update cadence, in-app purchases and device support there is nothing between them.

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

이음 ships an update every 6 days, Yoi weekly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 이음 | Yoi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Free | — |
| Size | 104 MB | 68 MB |
| Requires iOS | **12.1** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [jaepyo lee](https://appshunter.io/developer/1725078277) | [JAEMIN LEE](https://appshunter.io/developer/1894477300) |

## What reviewers say

### 이음

[App page](https://appshunter.io/ios/app/id6475754386)

Connect with fellow breast cancer patients through a dedicated community app. Share experiences on a bulletin board, find compatible peers using filters, and engage in one-on-one chats.

**Highlights:** Community bulletin board, Find compatible patients, 1:1 chat with peers, Filter by blood type, stage, and cancer type

**Features:** macOS Compatibility

**In-app purchases:** none


### Yoi

[App page](https://appshunter.io/ios/app/yoi-auto-push-up-counter/id6797146986)

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

**In-app purchases:** none


## Frequently asked questions

### Is 이음 free?

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

### Is Yoi free?

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

### Do 이음 or Yoi have ads?

Yoi shows ads; 이음 does not.

### Which is updated more often, 이음 or Yoi?

이음 ships an update every 6 days, and Yoi weekly. Most recently, 이음 was updated on October 24, 2026 and Yoi on October 22, 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.*