# One vs Color Sight (色彩視界)

The clearest difference is update cadence: One at every 5 months against Color Sight (色彩視界)'s every 10 months. One also leads on iOS requirement (14.0 vs 18.2). On price, ads, in-app purchases and device support there is nothing between them.

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

One ships an update every 5 months, Color Sight (色彩視界) every 10 months. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | One | Color Sight (色彩視界) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 10 months |
| Monetization | Free | — |
| Size | 49 MB | 18 MB |
| Requires iOS | **14.0** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NTT DATA GROUP CORPORATION](https://appshunter.io/developer/478236616) | [Chi-Yu Yeh](https://appshunter.io/developer/1472941052) |

## What reviewers say

### One

[App page](https://appshunter.io/ios/app/one-time-password/id1028958661)

This utility generates a secure, eight-digit disposable password every minute. These one-time passwords are ideal for enhancing security across various online services, as they become invalid after a short period, even if compromised.

**Highlights:** Generates eight-digit passwords, Passwords valid for one minute, Enhances online service security, Disposable password functionality, Requires OTP application at service

**Features:** Vision Pro support

**In-app purchases:** none


### Color Sight (色彩視界)

[App page](https://appshunter.io/ios/app/color-sight/id6742734863)

**In-app purchases:** none


## Frequently asked questions

### Is One free?

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

### Is Color Sight (色彩視界) free?

Color Sight (色彩視界) is free to download, with no in-app purchases.

### Do One or Color Sight (色彩視界) have ads?

Neither One nor Color Sight (色彩視界) shows ads.

### Which is updated more often, One or Color Sight (色彩視界)?

One ships an update every 5 months, and Color Sight (色彩視界) every 10 months. Most recently, One was updated on October 6, 2026 and Color Sight (色彩視界) on October 19, 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.*