# RYURAKU vs Filtroscope

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

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

RYURAKU ships an update every 3 weeks, Filtroscope daily. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RYURAKU | Filtroscope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 26 MB | 12 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) | [Thomas Roy](https://appshunter.io/developer/6780095310) |

## What reviewers say

### RYURAKU

[App page](https://appshunter.io/ios/app/ryuraku-fluid-dynamics/id6760613893)

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

**In-app purchases:** none


### Filtroscope

[App page](https://appshunter.io/ios/app/filtroscope/id6780152202)

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

**In-app purchases:** none


## Frequently asked questions

### Is RYURAKU free?

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

### Is Filtroscope free?

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

### Do RYURAKU or Filtroscope have ads?

RYURAKU shows ads; Filtroscope does not.

### Which is updated more often, RYURAKU or Filtroscope?

RYURAKU ships an update every 3 weeks, and Filtroscope daily. Most recently, RYURAKU was updated on October 31, 2026 and Filtroscope 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.*