# 最強HD動画保存 MP3変換 モット vs Arcastash

The clearest difference is ads: Arcastash at none against 最強HD動画保存 MP3変換 モット's shown. 最強HD動画保存 MP3変換 モット's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 最強HD動画保存 MP3変換 モット sells 3 in-app purchases, starting at $1.99 per month and Arcastash sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

最強HD動画保存 MP3変換 モット ships an update every 10 days, Arcastash every 5 days. The most recent releases landed on November 9, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 最強HD動画保存 MP3変換 モット | Arcastash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 5 days** |
| Size | 133 MB | 2 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Last,Inc.](https://appshunter.io/developer/430552387) | [Masaki Naito](https://appshunter.io/developer/6813077723) |

## What reviewers say

### 最強HD動画保存 MP3変換 モット

[App page](https://appshunter.io/ios/app/hd-mp3/id6757327056)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Plan | $1.99 | per month |
| 3 Month Plan | $4.99 | per 3 months |
| 12 Month Plan | $19.99 | per year |


### Arcastash

[App page](https://appshunter.io/ios/app/arcastash-media-library/id6813077721)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arcastash Pro | $5.99 | one-time |


## Frequently asked questions

### Is 最強HD動画保存 MP3変換 モット free?

最強HD動画保存 MP3変換 モット is free to download, with in-app purchases available.

### Is Arcastash free?

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

### Do 最強HD動画保存 MP3変換 モット or Arcastash have ads?

最強HD動画保存 MP3変換 モット shows ads; Arcastash does not.

### Which is updated more often, 最強HD動画保存 MP3変換 モット or Arcastash?

最強HD動画保存 MP3変換 モット ships an update every 10 days, and Arcastash every 5 days. Most recently, 最強HD動画保存 MP3変換 モット was updated on November 9, 2026 and Arcastash on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*