# ONF Link

> Smart lighting control app for managing schedules, brightness, and color temperature. (iPhone/iPad app by YOU HAU CO.LTD.)

- Source: https://appshunter.io/ios/app/onf-link/id1453834714 (this page in markdown: same URL + `.md`)
- Developer: [YOU HAU CO.LTD](https://appshunter.io/developer/1032206108)
- Category: Lifestyle, Utilities
- Price: Free
- Rating: 2.04/5 from 26 App Store ratings · 30 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 81 MB
- Languages: English, Chinese, Chinese
- Released: 2019-02-26
- Data updated: 2026-07-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/onf-link/id1453834714/reviews.md

## What is ONF Link?

The free ONF Link companion app uses your smartphone to manage your ONF devices, including lighting schedule, brightness, and color temperature. You can easily adjust the finer brightness and CCT( color temperature) in manual mode.
In daylight cycle mode, you may set the combination of up to five groups of brightness and CCT. 
ONF device will change the light color and brightness gradually depending on the time you set, providing a variety of looks at different times, and creating a personalized daylight cycle.

## Key features

- Manage ONF devices
- Adjust brightness and color temperature
- Create custom lighting schedules
- Personalized daylight cycles
- Manual and daylight cycle modes

## Recent user reviews (10 of 30)

All indexed reviews: https://appshunter.io/ios/app/onf-link/id1453834714/reviews.md

### 1/5 — 半成品

*2026-07-22, version 2.1*

Nano flat+連結app使用不便，時間亮度無法刪改

### 1/5 — 排程無法重啟

*2026-04-20, version 2.1*

關閉後，待到隔日，開啟時間，排程不會自動再開啟

### 1/5 — 垃圾燈

*2026-04-15, version 2.1*

大家千萬不要花冤枉錢
去買ADA更好用
這個產品連線完全用不了 爛死了

### 2/5 — 常常打不開

*2026-01-13, version 2.1*

APP連線很不穩，如果都要手動去開，那麼多花錢升級智慧版是買心酸嗎？

### 3/5 — Used to work perfectly

*2025-12-07, version 2.1*

I came to the App Store in hopes of seeing that I needed to update my app, since there aren’t any updates maybe a review will help get this sorted? I’ve been controlling my Flat Nano+ for a few years with this app without issue. However I’m trying to adjust the schedule for it and it kicks me back to the Home Screen/device list every time I try to change something.

### 5/5 — Easy to use

*2025-06-04, version 2.1*

I don’t think the 2 star rating is fair at all. This is a very simple app that is easy to use. The only downside is the way you have to delete each timer from the latest to the first, which makes sense from a development standpoint because the next timer in sequence automatically sets the start time. There is a pairing walk through too, so setting up is easy. I don’t know what the fuss is about.

### 1/5 — 設置不好用

*2025-03-28, version 2.1*

調整時間很困難，必須所以時間段都刪除。app一直不升級改進⋯

### 1/5 — Are you serious

*2025-03-04, version 2.1*

This is a horrible app, my lights doesn’t even want to connect with this stupid app

### 5/5 — Simple app; does the job

*2024-12-02, version 2.1*

TL;DR: The app is simple. The lights are simple. Read the instructions or watch the videos on first setup. // When you first boot up the app to connect a device, it runs through the intro to show you (with pictures) how to add new devices. If you skip past that, you can access the instructions again in the app’s menu, which is under the three lines on the top left. If you miss the bluetooth light and don’t know how to get it back, they even have instructional videos on their website or on YT that show you how to unplug the light, then plug it back in. They have videos that go into more detail for each of the different types of lamps. The language of the site is in Chinese, but the browser should have the option to translate it to whatever language you need. Otherwise, YT has videos listed if you look up ‘ONF’ or ‘ONF lights’ or something. I don’t know. It was easy to setup, so I didn’t need to go that far into it.

### 3/5 — There are definitely some improvements that could be made

*2024-11-16, version 2.1*

The app works, and for me, I use the “Daylight circle” so it’s a set it and forget it kind of thing. For that purpose it definitely gets the job done. However it’s not the easiest. 

My main complaints are:

1) When you are adding your day light circle settings (ex. 50% brightness from 8am - 10 am) each subsequent setting is dependent on the end time of the one right before it. So if you have 3 settings (8-10, 10-12, 12-2) and you want to change the first setting go end at 11 instead of 10, you have to delete all of the later-in-the-day settings before it will let you adjust the earlier one. 

2) When you make your daylight circle, you are limited to 6 different settings that it will cycle through for the day. That’s honestly enough, but it doesn’t indicate that until after you have added the 6th. This is super annoying considering my first issue (above) because you can only edit the timing of the latest-in-the-day setting. So when you find out that the 6th one you added is the last one you can add, and that schedule doesn’t cover the full day, you have to delete everything and start over. 

3) My final issue is specific to the “Blue White Flat One +” but the color temperature graph is backwards on the Daylight Cycle chart. So full white with no blue on the actual light shows as dark blue on the graph (and vise versa). It doesn’t have that problem with the “Yellow White” version of the light. 

So overall, because I rarely have to use the app, and once you understand its quirks it does serve its purpose (even if it’s a little frustrating) I’m giving it 3/5 start. Mostly because the light itself is really nice

## Frequently asked questions about ONF Link

### What can I do with ONF Link?

ONF Link allows you to manage your ONF devices, including setting lighting schedules, adjusting brightness, and controlling color temperature. You can create personalized daylight cycles and fine-tune settings in manual mode.

### Does ONF Link have ads?

No, ONF Link does not contain advertisements. It is a free application that provides lighting control features without interruptions.

### What devices does ONF Link support?

ONF Link is available for iPhone and iPod devices. It is designed to manage ONF smart lighting devices.

### How often is ONF Link updated?

The latest version of ONF Link is 2.1, which was last updated on September 7, 2023. Updates are released periodically to improve functionality and compatibility.

### What is the age rating for ONF Link?

ONF Link has an age rating of 4+. This indicates it is suitable for users aged four and older.

### What is the user rating for ONF Link?

ONF Link has a user rating of 2.0 stars based on 26 ratings. This suggests that users have mixed experiences with the application.

### Can I create custom lighting schedules with ONF Link?

Yes, ONF Link allows you to create custom lighting schedules. You can set up to five groups of brightness and CCT (color temperature) combinations to change gradually throughout the day.

### Is ONF Link free to download?

Yes, ONF Link is a free application. There are no charges to download or use its core lighting management features.

## Version history (last 5 releases)

### 2.1 — 2023-09-07

Updates include Intro page, social media links, Q＆A updates, addition of compatible product MIST O+, and adjustments to the color temperature display.

### 2.0 — 2022-12-22

Added support for iOS 14 and above to version 16.2

### 1.11 — 2021-05-17

Bug fixed

### 1.07 — 2019-12-17

bug fixed

### 1.03 — 2019-06-14

App Previews updated

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## More apps by YOU HAU CO.LTD

- [ONF Remote](https://appshunter.io/ios/app/onf-remote/id1032206109)

All apps by YOU HAU CO.LTD: https://appshunter.io/developer/1032206108

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-25.*