# 산림기사 vs Rubi

The clearest difference is in-app purchases: 산림기사 at none against Rubi's 1. 산림기사 also leads on iOS requirement (12.0 vs 15.0). Rubi's advantage is ads (none vs shown) and update cadence (every 2 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Rubi sells 1 in-app purchase, starting at $0.99 per month. 산림기사 asks for nothing beyond the download.

산림기사 ships an update every 2 months, Rubi every 2 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 산림기사 | Rubi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 208 MB | 2 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Jongmin Kim](https://appshunter.io/developer/1693759760) | [Shinichiro Yamashita](https://appshunter.io/developer/695153141) |

## What reviewers say

### 산림기사

[App page](https://appshunter.io/ios/app/id6742226297)

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

**In-app purchases:** none


### Rubi

[App page](https://appshunter.io/ios/app/rubi-dual-subtitle-player/id6762080234)

**Features:** Safari Extension, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rubi Pro Monthly | $0.99 | per month |


## Frequently asked questions

### Is 산림기사 free?

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

### Is Rubi free?

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

### Do 산림기사 or Rubi have ads?

산림기사 shows ads; Rubi does not.

### Which is updated more often, 산림기사 or Rubi?

산림기사 ships an update every 2 months, and Rubi every 2 days. Most recently, 산림기사 was updated on October 24, 2026 and Rubi 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.*