# 루시아 원 만세력 vs B

루시아 원 만세력 and B are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

루시아 원 만세력 ships an update every 5 days, B every 3 days. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 루시아 원 만세력 | B |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 51 MB | 31 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BYEONGHOON JEON](https://appshunter.io/developer/1758287471) | [IN&OUT Co.,Ltd.](https://appshunter.io/developer/6783921917) |

## What reviewers say

### 루시아 원 만세력

[App page](https://appshunter.io/ios/app/id6605937001)

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

**In-app purchases:** none


### 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 루시아 원 만세력 free?

루시아 원 만세력 is free to download, with no in-app purchases.

### Is B free?

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

### Do 루시아 원 만세력 or B have ads?

Neither 루시아 원 만세력 nor B shows ads.

### Which is updated more often, 루시아 원 만세력 or B?

루시아 원 만세력 ships an update every 5 days, and B every 3 days. Most recently, 루시아 원 만세력 was updated on October 12, 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.*