# ReefSky vs Keloray Pro

The clearest difference is update cadence: ReefSky at every 5 days against Keloray Pro's every 3 weeks. ReefSky also leads on iOS requirement (9.0 vs 12.4). 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.

ReefSky ships an update every 5 days, Keloray Pro every 3 weeks. The most recent releases landed on October 18, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | ReefSky | Keloray Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 9 MB | 57 MB |
| Requires iOS | **9.0** | 12.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [勇强 夏](https://appshunter.io/developer/1043457850) | [志强 王](https://appshunter.io/developer/1080996774) |

## What reviewers say

### ReefSky

[App page](https://appshunter.io/ios/app/reefsky/id1178881200)

This app controls aquarium LED lights via Bluetooth 4.0. It allows for custom, office, or home lighting modes with color transitions. The app also supports firmware updates.

**Highlights:** Bluetooth 4.0 control, 4-way LED lighting, Customizable lighting modes, Color transition effects, OAD firmware upgrades

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Keloray Pro

[App page](https://appshunter.io/ios/app/keloray-pro/id6450856671)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ReefSky free?

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

### Is Keloray Pro free?

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

### Do ReefSky or Keloray Pro have ads?

Neither ReefSky nor Keloray Pro shows ads.

### Which is updated more often, ReefSky or Keloray Pro?

ReefSky ships an update every 5 days, and Keloray Pro every 3 weeks. Most recently, ReefSky was updated on October 18, 2026 and Keloray Pro on September 26, 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.*