# Colorgen vs NativeScript Preview

The clearest difference is review sentiment: Colorgen at 100% against NativeScript Preview's 19%. NativeScript Preview's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (14.0 vs 18.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Colorgen ships an update every 2 months, NativeScript Preview every 3 weeks. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Colorgen | NativeScript Preview |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5 ratings)](https://appshunter.io/ios/app/nativescript-preview/id1264484702/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | **100.0% of reviews** | 19.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 5 MB | 151 MB |
| Requires iOS | 18.6 | **14.0** |
| Devices | iPhone, iPad, Mac, Vision Pro | iPhone, iPad, iPod, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Kazuhisa Asakawa](https://appshunter.io/developer/927996843) | [nStudio LLC](https://appshunter.io/developer/1334290003) |

## What reviewers say

### Colorgen

[App page](https://appshunter.io/ios/app/colorgen-html-color-search/id961417428)

Easily find HTML color codes by name or color. Get detailed color information including RGB, CMYK, and HSL values. Convert between decimal, binary, and hexadecimal formats.

**Highlights:** Search by HTML color code, Search by color name, View RGB, CMYK, HSL values, Convert between decimal, binary, hexadecimal, Web-safe color search

**In-app purchases:** none


### NativeScript Preview

[App page](https://appshunter.io/ios/app/nativescript-preview/id1264484702)

Instantly preview your NativeScript projects directly on your mobile device. See your native UI elements, from buttons to complex 2D/3D canvas renderings, come to life as you develop.

**Highlights:** Live preview on device, Native UI element rendering, 2D canvas rendering, 3D canvas rendering, Cross-platform development tool

**In-app purchases:** none


## Frequently asked questions

### Is Colorgen free?

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

### Is NativeScript Preview free?

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

### Do Colorgen or NativeScript Preview have ads?

Neither Colorgen nor NativeScript Preview shows ads.

### Which is updated more often, Colorgen or NativeScript Preview?

Colorgen ships an update every 2 months, and NativeScript Preview every 3 weeks. Most recently, Colorgen was updated on October 4, 2026 and NativeScript Preview on October 6, 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.*