# 58YSZJ

> Color extraction tool and visual challenge arena for designers and artists. (iPhone/iPad app by Kara Kuru.)

- Source: https://appshunter.io/ios/app/58yszj/id6761049329 (this page in markdown: same URL + `.md`)
- Developer: [Kara Kuru](https://appshunter.io/developer/1887501042)
- Category: Developer Tools
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 13.1 · 3 MB
- Languages: American English
- Released: 2026-03-24
- Data updated: 2026-10-31
- Monetization: free

## What is 58YSZJ?

58YSZJ is a color aesthetic terminal specifically designed for designers, photographers, and visual art enthusiasts. It is not only a professional color extraction tool but also a competition arena that challenges the limits of vision, aiming to help users establish a profound color logic in both entertainment and creation.
     By applying the built-in core module "Color Difference Challenge", a dynamic evolutionary color gradient algorithm is adopted. In the futuristic interface of dark graphite, players need to identify the target from a color deviation array ranging from the slightest to 1.2%. This intense visual training not only enhances users' sensitivity to color saturation and brightness, but also makes each click an exploration of the retina's limits.
     In terms of productivity tools, the image color extraction function gives life fragments a digital soul. With just one click to upload, the underlying Hex and RGB core data behind the light and shadow can be instantly restored. And the image to color card function goes even further. It can break down complex images into simple and structured color spectrums, helping you extract advanced color schemes from architecture, nature or artworks, and build a private and exclusive color library of your own.
     With its minimalist and elegant design and smooth interaction feedback, KSepiabox turns color capture into an art form and color competition into a spiritual practice. It is an indispensable color laboratory for you on your mobile device.

## Key features

- Professional color extraction
- Color deviation challenge game
- Image to color card conversion
- Hex and RGB data retrieval
- Private color library creation
- Minimalist design

## Is 58YSZJ safe?

Not enough ratings yet to assess 58YSZJ.

## Is 58YSZJ legit?

58YSZJ is no longer available in the App Store. The AppsHunter Legitimacy Score for 58YSZJ is 30 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about 58YSZJ

### What is 58YSZJ used for?

58YSZJ is used for professional color extraction and as a visual challenge arena. It helps users develop color logic, enhance sensitivity to color, and extract advanced color schemes from images.

### How does the Color Difference Challenge work in 58YSZJ?

The Color Difference Challenge uses a dynamic evolutionary color gradient algorithm. Players must identify targets from a color deviation array, ranging from the slightest to 1.2% deviation, to train their visual sensitivity.

### Can 58YSZJ extract color data from images?

Yes, 58YSZJ has an image color extraction function that instantly restores Hex and RGB core data. It also features an image to color card function to break down complex images into structured color spectrums.

### Is 58YSZJ suitable for creating a personal color library?

Absolutely. The app allows you to extract advanced color schemes from various sources like architecture, nature, or artworks, helping you build a private and exclusive color library.

### What devices does 58YSZJ support?

58YSZJ is available for iPhone and iPod devices.

### What is the age rating for 58YSZJ?

58YSZJ has an age rating of 4+, making it suitable for a wide range of users.

### Is 58YSZJ free to download and use?

Yes, 58YSZJ is completely free to download and use, with no in-app purchases or advertisements.

### How often is 58YSZJ updated?

58YSZJ was last updated on March 24, 2026, with version 1.0. Future updates will likely follow a similar release schedule.

## Version history (last 1 release)

### 1.0 — 2026-03-24

No release notes.

## More apps by Kara Kuru

- [Artisan Partners](https://appshunter.io/ios/app/artisan-partners/id6786121608)
- [GTHT Kara](https://appshunter.io/ios/app/gtht-kara/id6820913510)

All apps by Kara Kuru: https://appshunter.io/developer/1887501042

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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 2026-10-31.*