# 地下道 vs Arrow.

The clearest difference is ads: 地下道 at none against Arrow.'s shown. 地下道 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.6). Arrow.'s advantage is update cadence (daily vs every 3 weeks). On price and in-app purchases there is nothing between them.

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

地下道 ships an update every 3 weeks, Arrow. daily. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 地下道 | Arrow. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/id6477566356/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 306 MB | 108 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [YUKI MIZUNO](https://appshunter.io/developer/1266124413) | [Yuto Shibuya](https://appshunter.io/developer/6794951835) |

## What reviewers say

### 地下道

[App page](https://appshunter.io/ios/app/id6477566356)

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

**In-app purchases:** none


### Arrow.

[App page](https://appshunter.io/ios/app/arrow/id6794951843)

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

**In-app purchases:** none


## Frequently asked questions

### Is 地下道 free?

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

### Is Arrow. free?

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

### Do 地下道 or Arrow. have ads?

Arrow. shows ads; 地下道 does not.

### Which is updated more often, 地下道 or Arrow.?

地下道 ships an update every 3 weeks, and Arrow. daily. Most recently, 地下道 was updated on October 15, 2026 and Arrow. on September 30, 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.*