# 삶과 운명 vs B

The clearest difference is in-app purchases: B at none against 삶과 운명's 11. B also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. 삶과 운명 sells 11 in-app purchases, starting at $1.99 per month. B asks for nothing beyond the download.

삶과 운명 ships an update every 3 weeks, B every 3 days. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 삶과 운명 | B |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 62 MB | 31 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Youngsang Hwang](https://appshunter.io/developer/1820611144) | [IN&OUT Co.,Ltd.](https://appshunter.io/developer/6783921917) |

## What reviewers say

### 삶과 운명

[App page](https://appshunter.io/ios/app/id6747602436)

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 궁합 월간 구독 | $1.99 | per month |
| 현공풍수 월간 구독 | $1.99 | per month |
| 타로 월간 구독 | $1.99 | per month |
| 신살방위 월간 구독 | $1.99 | per month |
| 궁합 6개월 구독 | $7.99 | per 6 months |
| 신살방위 6개월 구독 | $7.99 | per 6 months |
| 타로 6개월 구독 | $7.99 | per 6 months |
| 현공풍수 6개월 구독 | $9.99 | per 6 months |
| 신살방위 연간 구독 | $11.99 | per year |
| 타로 연간 구독 | $11.99 | per year |
| 현공풍수 연간 구독 | $14.99 | per year |


### B

[App page](https://appshunter.io/ios/app/b-sync/id6783921705)

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

**In-app purchases:** none


## Frequently asked questions

### Is 삶과 운명 free?

삶과 운명 is free to download, with in-app purchases available.

### Is B free?

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

### Do 삶과 운명 or B have ads?

Neither 삶과 운명 nor B shows ads.

### Which is updated more often, 삶과 운명 or B?

삶과 운명 ships an update every 3 weeks, and B every 3 days. Most recently, 삶과 운명 was updated on October 8, 2026 and B on October 3, 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.*