# 柳吟Line vs 陳杰數學

The clearest difference is update cadence: 柳吟Line at every 2 months against 陳杰數學's every 23 months. 柳吟Line also leads on iOS requirement (12.0 vs 15.0). On price, ads, 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.

柳吟Line ships an update every 2 months, 陳杰數學 every 23 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 柳吟Line | 陳杰數學 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 23 months |
| Size | 32 MB | 197 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [柳吟文教事業股份有限公司](https://appshunter.io/developer/1752616012) | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) |

## What reviewers say

### 柳吟Line

[App page](https://appshunter.io/ios/app/line/id1090716681)

**Features:** macOS Compatibility

**In-app purchases:** none


### 陳杰數學

[App page](https://appshunter.io/ios/app/id1665824644)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 柳吟Line free?

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

### Is 陳杰數學 free?

陳杰數學 is free to download, with no in-app purchases.

### Do 柳吟Line or 陳杰數學 have ads?

Neither 柳吟Line nor 陳杰數學 shows ads.

### Which is updated more often, 柳吟Line or 陳杰數學?

柳吟Line ships an update every 2 months, and 陳杰數學 every 23 months. Most recently, 柳吟Line was updated on October 26, 2026 and 陳杰數學 on October 25, 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.*