# Techno Rainbow vs Car Starry Sky

The clearest difference is iOS requirement: Car Starry Sky at 12.0 against Techno Rainbow's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Techno Rainbow | Car Starry Sky |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/car-starry-sky/id6738410498/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 3 MB | 34 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen Lenze Technology Co,.Ltd.](https://appshunter.io/developer/1190864538) | [旭东 陈](https://appshunter.io/developer/1650390655) |

## What reviewers say

### Techno Rainbow

[App page](https://appshunter.io/ios/app/techno-rainbow/id6453409883)

Control your car's interior lighting and air freshening systems. Customize lighting modes, colors, and brightness, and manage scent intensity and air purification for a personalized driving experience.

**Highlights:** Car interior lighting control, Customizable lighting modes and colors, Rainbow lighting effect, Music synchronization for lighting, Air freshening and ionization control, Adjustable scent intensity

**In-app purchases:** none


### Car Starry Sky

[App page](https://appshunter.io/ios/app/car-starry-sky/id6738410498)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Techno Rainbow free?

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

### Is Car Starry Sky free?

Car Starry Sky is free to download, with no in-app purchases.

### Do Techno Rainbow or Car Starry Sky have ads?

Neither Techno Rainbow nor Car Starry Sky shows ads.

### Which is updated more often, Techno Rainbow or Car Starry Sky?

Techno Rainbow ships an update every 2 months, and Car Starry Sky every 2 months. Most recently, Techno Rainbow was updated on October 17, 2026 and Car Starry Sky on October 24, 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.*