# Filter Simulation vs Roshutsucho

The clearest difference is in-app purchases: Filter Simulation at none against Roshutsucho's 1. Filter Simulation also leads on update cadence (monthly vs every 4 months). Roshutsucho's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Roshutsucho sells 1 one-off in-app purchase. Filter Simulation asks for nothing beyond the download.

Filter Simulation ships an update monthly, Roshutsucho every 4 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Filter Simulation | Roshutsucho |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/filter-simulation/id6747726359/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free | — |
| Size | 1 MB | 43 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ari Jaaksi](https://appshunter.io/developer/1770069317) | [Hiroyuki Yamamoto](https://appshunter.io/developer/1893275804) |

## What reviewers say

### Filter Simulation

[App page](https://appshunter.io/ios/app/filter-simulation/id6747726359)

Simulate the effects of real optical filters for black and white photography. This app accurately mimics the luminance modulation of red, yellow, green, blue, and orange filters. It also includes an automatic shutter speed calculator for ND filters and a pinhole photography simulator.

**Highlights:** Simulate optical filters for B&W, Mimics red, yellow, green, blue, orange filters, Custom CIColorKernel shaders, Automatic shutter speed calculator for ND filters, Pinhole photograph simulation

**Features:** macOS Compatibility

**In-app purchases:** none


### Roshutsucho

[App page](https://appshunter.io/ios/app/roshutsucho-exposure-and-nd/id6769304650)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Roshutsucho Pro | $4.99 | one-time |


## Frequently asked questions

### Is Filter Simulation free?

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

### Is Roshutsucho free?

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

### Do Filter Simulation or Roshutsucho have ads?

Neither Filter Simulation nor Roshutsucho shows ads.

### Which is updated more often, Filter Simulation or Roshutsucho?

Filter Simulation ships an update monthly, and Roshutsucho every 4 months. Most recently, Filter Simulation was updated on October 24, 2026 and Roshutsucho on October 12, 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.*