# 刀友论坛 vs 第二生命

The clearest difference is in-app purchases: 刀友论坛 at none against 第二生命's 18. 刀友论坛 also leads on iOS requirement (9.0 vs 13.0). 第二生命's advantage is update cadence (every 8 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. 第二生命 sells 18 one-off in-app purchases. 刀友论坛 asks for nothing beyond the download.

刀友论坛 ships an update every 8 months, 第二生命 every 8 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 刀友论坛 | 第二生命 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6744356531/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 8 days** |
| Size | 130 MB | 99 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [楠 李](https://appshunter.io/developer/1502947511) | [Guangxi Shuxin Network Technology Co., Ltd](https://appshunter.io/developer/1807271602) |

## What reviewers say

### 刀友论坛

[App page](https://appshunter.io/ios/app/id1502947512)

**Features:** macOS Compatibility

**In-app purchases:** none


### 第二生命

[App page](https://appshunter.io/ios/app/id6744356531)

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10积分 | $1.99 | one-time |
| 20积分 | $2.99 | one-time |
| 50积分 | $7.99 | one-time |
| 100积分 | $17.99 | one-time |
| CAIE LEVEL I | $29.99 | one-time |
| 200积分 | $34.99 | one-time |
| CAIE LEVEL I 认证报名+纸质版证书 | $39.99 | one-time |
| 500积分 | $89.99 | one-time |
| CAIE LEVEL II 认证报名+纸质版证书 | $119.99 | one-time |
| CAIE LEVEL II | $119.99 | one-time |
| CAIE LEVEL I+II 联报 | $149.99 | one-time |
| AIPM 一级 | $179.99 | one-time |
| CAIE LEVEL I+II 联报+纸质版证书 | $179.99 | one-time |
| AIPM 一级认证报名+纸质版证书 | $179.99 | one-time |
| AIPM 高级 | $249.99 | one-time |
| AIPM 高级认证报名+纸质版证书 | $249.99 | one-time |
| AIPM 一级+高级 联报 | $399.99 | one-time |
| AIPM 一级+高级 联报+纸质版证书 | $399.99 | one-time |


## Frequently asked questions

### Is 刀友论坛 free?

刀友论坛 is free to download, with no in-app purchases.

### Is 第二生命 free?

第二生命 is free to download, with in-app purchases available.

### Do 刀友论坛 or 第二生命 have ads?

Neither 刀友论坛 nor 第二生命 shows ads.

### Which is updated more often, 刀友论坛 or 第二生命?

刀友论坛 ships an update every 8 months, and 第二生命 every 8 days. Most recently, 刀友论坛 was updated on October 25, 2026 and 第二生命 on October 24, 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.*