# Subtilizer — Little subtle image processor

> Subtle image processing app for posterization, filtering, and edge enhancement. (iPhone/iPad app by Itoh Tomoaki.)

- Source: https://appshunter.io/ios/app/subtilizer/id1386177976 (this page in markdown: same URL + `.md`)
- Developer: [Itoh Tomoaki](https://appshunter.io/developer/871816883)
- Category: Photo & Video, Utilities
- Price: Free
- Rating: 5.00/5 from 5 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 1 MB
- Languages: American English, Japanese
- Released: 2018-06-11
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/subtilizer/id1386177976/reviews.md

## What is Subtilizer?

Posterization, filtering detail and edge enhance and convert to a little subtle image.

Subtilizer is such an application.

## Key features

- Posterization effect
- Detail filtering
- Edge enhancement
- Subtle image conversion

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/subtilizer/id1386177976/reviews.md

### 5/5 — Great for value studies

*2025-03-25*

If you need a lightweight app for doing value studies for painting or other creative work, this thing fits the bill. Set the number of colors, switch to black and white and back, tweak curves and RGB values, everything you need. And it’s free, can’t beat that.

### 5/5 — Perfect niche app

*2023-08-28, version 2.0.1*

Perfect for breaking down colour layers to prepare a reference image for painting

### 5/5 — Fabulous & Easy!

*2022-02-06, version 1.0.0*

Great app. Thank you for this!

### 5/5 — Perfection

*2021-02-14, version 1.0.0*

I needed an app that polarizes pics for Color breakdown.. adjustable, free and works perfectly.. 5stars all the way!

### 5/5 — What am I missing

*2020-07-13, version 1.0.0*

No ads, easy to use, free, it works.

### 5/5 — Wow.

*2019-01-11*

I really like this app and I think it is overall fun and creative. I was looking for an app like this but all I could find were apps with either way to many ads or was just absolutely terrible. I did not experience any bugs or glitches which now is really hard thing to find. I will give this app a five star rating because it just makes me laugh.

## Frequently asked questions about Subtilizer

### What is Subtilizer?

Subtilizer is a mobile application designed for subtle image processing. It offers features like posterization, detail filtering, and edge enhancement to transform your photos.

### Is Subtilizer free to use?

Yes, Subtilizer is completely free to download and use. It does not require any payment or subscription to access its features.

### What devices does Subtilizer support?

Subtilizer is available for both iPhone and iPad devices, allowing users to enhance their images on their preferred Apple mobile device.

### How often is Subtilizer updated?

The app was last updated on September 2, 2024, indicating ongoing development and support from the developer. The latest version is 2.0.2.

### What is the age rating for Subtilizer?

Subtilizer has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in creative photo editing.

### Does Subtilizer have ads?

No, Subtilizer does not contain advertisements. Users can enjoy the app's features without any interruptions from ads.

### What kind of image effects does Subtilizer offer?

Subtilizer specializes in subtle effects, including posterization, filtering to enhance detail, and edge enhancement for a refined artistic look.

### What do users think of Subtilizer?

Based on the available data, Subtilizer has received excellent user feedback, holding a perfect 5.0-star rating from 5 reviews.

## Version history (last 4 releases)

### 2.0.2 — 2024-09-02

Release note (Ver.2.0.2)
- Added: Context menu to "Copy" by long tapping image
- Added: Context menu to "Save Image" by long tapping image
- Added: Context menu to "Share" by long tapping image

### 2.0.1 — 2022-11-21

Release note (Ver.2.0.1)
- Fixed: UI layout on iPad (Portrait)
- Added: UI layout on iPad (Landscape)

### 2.0.0 — 2022-10-24

Release note (Ver.2.0.0)
- Added: Tone Curve
- Added: Contrast Curve
- Added: Color/Gray-scale selectable
- Change: Save format is PNG only

### 1.0.0 — 2018-05-18

This app has been updated by Apple to display the Apple Watch app icon.

## More apps by Itoh Tomoaki

- [TriShoot](https://appshunter.io/ios/app/trishoot/id871816879)
- [ToyTone](https://appshunter.io/ios/app/toytone/id1016447265)
- [Chaotic](https://appshunter.io/ios/app/chaotic/id1369087152)
- [LCW-2 mono](https://appshunter.io/ios/app/lcw-2-mono/id1408272622)
- [LCW-2](https://appshunter.io/ios/app/lcw-2/id1438341642)

All apps by Itoh Tomoaki: https://appshunter.io/developer/871816883

## Related topics

[itoh tomoaki](https://appshunter.io/ios/topics/itoh-tomoaki)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*