# サイトラ！英文速読特訓 vs Fluffy Fluff Vision Experiment

The clearest difference is ads: サイトラ！英文速読特訓 at none against Fluffy Fluff Vision Experiment's shown. Fluffy Fluff Vision Experiment's advantage is update cadence (every 6 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. サイトラ！英文速読特訓 sells 3 in-app purchases, starting at $7.99 per month and Fluffy Fluff Vision Experiment sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

サイトラ！英文速読特訓 ships an update every 3 months, Fluffy Fluff Vision Experiment every 6 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | サイトラ！英文速読特訓 | Fluffy Fluff Vision Experiment |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (28 ratings)](https://appshunter.io/ios/app/id6448872534/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Size | 82 MB | 144 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Junki Hadano](https://appshunter.io/developer/1478710277) | [Yusuke Okada](https://appshunter.io/developer/1793725878) |

## What reviewers say

### サイトラ！英文速読特訓

[App page](https://appshunter.io/ios/app/id6448872534)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| サイトラ！PRO 1ヶ月プラン | $7.99 | per month |
| サイトラ！PRO 3ヶ月プラン | $19.99 | per 3 months |
| サイトラ！PRO 6ヶ月プラン | $24.99 | per 6 months |


### Fluffy Fluff Vision Experiment

[App page](https://appshunter.io/ios/app/fluffy-fluff-vision-experiment/id6751847577)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


## Frequently asked questions

### Is サイトラ！英文速読特訓 free?

サイトラ！英文速読特訓 is free to download, with in-app purchases available.

### Is Fluffy Fluff Vision Experiment free?

Fluffy Fluff Vision Experiment is free to download, with in-app purchases available.

### Do サイトラ！英文速読特訓 or Fluffy Fluff Vision Experiment have ads?

Fluffy Fluff Vision Experiment shows ads; サイトラ！英文速読特訓 does not.

### Which is updated more often, サイトラ！英文速読特訓 or Fluffy Fluff Vision Experiment?

サイトラ！英文速読特訓 ships an update every 3 months, and Fluffy Fluff Vision Experiment every 6 weeks. Most recently, サイトラ！英文速読特訓 was updated on October 10, 2026 and Fluffy Fluff Vision Experiment on October 6, 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.*