# MeRGBW vs OIYN

The clearest difference is rating: OIYN at 4.2 against MeRGBW's 2.2. MeRGBW's advantage is ratings volume (151 vs 9) and iOS requirement (13.0 vs 15.0). 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.

OIYN holds the better App Store score, 4.2 against 2.2. That said, the two scores are not equally well evidenced: MeRGBW has 151 ratings behind it against 9, so its average is the more settled of the two.

MeRGBW ships an update monthly, OIYN every 3 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | MeRGBW | OIYN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (151 ratings)](https://appshunter.io/ios/app/mergbw/id6463129603/reviews) | **[4.2 (9 ratings)](https://appshunter.io/ios/app/oiyn/id6773618799/reviews)** |
| Number of ratings | **151** | 9 |
| Positive reviews | 15.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 43 MB | 100 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Dingyun Future Technology Co., Ltd.](https://appshunter.io/developer/1703977957) | [Shenzhen Giant Lighting Technology Co., Ltd](https://appshunter.io/developer/1771136894) |

## What reviewers say

### MeRGBW

[App page](https://appshunter.io/ios/app/mergbw/id6463129603)

Control your smart Bluetooth lighting fixtures with this app. Easily manage lamps by room or area, adjust brightness, temperature, and color. Transform your space with pre-designed lighting scenes or create personalized automations for your daily schedule.

**Highlights:** Room and area lighting management, Adjust brightness, temperature, and color, Pre-designed lighting scenes, Customizable light formulas, Personalized daily automations

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy setup and navigation
- 🎨 Wide variety of color options and scenes
- ⚡ Fast connection when working properly
- 🎯 Responsive controls and instant feedback
- 💡 Creative lighting effects and animations

**What reviewers complain about**

- 📺 Intrusive full-screen ads on paid product
- 🚫 Inappropriate/pornographic ad content
- 🔌 Frequent Bluetooth connection failures
- 🐛 App crashes and disconnects randomly
- ⏱️ Slow app loading and performance

**Reported bugs**

- Bluetooth won't connect or frequently disconnects
- App fails to recognize nearby devices
- Scenes don't work or change colors as described
- Music feature non-functional despite permissions
- Colors glitch or revert unexpectedly

**Requested features**

- Remove or significantly reduce ads from paid product
- Add brightness control in app
- Implement Alexa/Siri voice control compatibility
- Allow custom preset saving
- Add animation speed adjustment controls


### OIYN

[App page](https://appshunter.io/ios/app/oiyn/id6773618799)

Control your lights via Bluetooth. This app identifies lighting fixtures, displays signal strength, and allows for dimming, color, and scene adjustments. It also features a music rhythm mode and supports multi-device control through scenarios.

**Highlights:** Bluetooth BLE control, Lighting fixture recognition, Signal strength display, Dimming and color settings, Scene and mode presets, Music rhythm synchronization, Multi-device scenario control

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

**In-app purchases:** none


## Frequently asked questions

### Is MeRGBW free?

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

### Is OIYN free?

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

### Which has better reviews, MeRGBW or OIYN?

OIYN is rated higher. MeRGBW averages 2.2 out of 5 from 151 ratings, while OIYN averages 4.2 from 9 ratings.

### Do MeRGBW or OIYN have ads?

Neither MeRGBW nor OIYN shows ads.

### Which is updated more often, MeRGBW or OIYN?

MeRGBW ships an update monthly, and OIYN every 3 weeks. Most recently, MeRGBW was updated on October 25, 2026 and OIYN on October 28, 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.*