# Kessil WiFi

> Remote control for Kessil X-Series aquarium LED lights. (iPhone/iPad app by Dicon Lighting.)

- Source: https://appshunter.io/ios/app/kessil-wifi/id1458081350 (this page in markdown: same URL + `.md`)
- Developer: [Dicon Lighting](https://appshunter.io/developer/932272980)
- Category: Lifestyle, Utilities
- Price: Free
- Rating: 2.17/5 from 96 App Store ratings · 65 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 354 MB
- Languages: English
- Released: 2019-10-02
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/kessil-wifi/id1458081350/reviews.md

## What is Kessil WiFi?

Control the Kessil X-Series lights with the intuitive Kessil WiFi app. Customize color and intensity on demand, access to the additional color channels to highlight your corals, plants, and fishes. Arrange lights into different groups for endless programming possibility. Program your own unique light schedule to simulate the natural course of the sun and the moon. The Kessil WiFi app helps you create your own personal ocean.

► Features
* Easy to navigate, easy to learn
* Easily connect with compatible Kessil WiFi Dongle and lights within minutes
* Full color control & custom color saving
* Flexible grouping for endless programming possibilities
* Create custom light schedules with Program Mode and preview them easily
* Lunar Cycle Mode
* Coral Acclimation Mode
* Special effects available for programs
* Easy over-the-air firmware update
* Cloud backup

► About Kessil

Kessil specializes in aquarium and horticulture LED lighting using patented Dense Matrix LED technology. Such technology creates a natural shimmer and allows perfect color mixing in water. Kessil's products produce a powerful, penetrating stream of light with specific wavelengths to enhance plant and coral growth. Kessil is leading The Spectral Revolution®.
For more information, please visit:
http://www.kessil.com/
http://www.youtube.com/kessiltube

## Key features

- Remote light control
- Color and intensity customization
- Custom light schedules
- Lunar Cycle Mode
- Coral Acclimation Mode
- Light grouping for programming
- Over-the-air firmware updates

## What do users think of Kessil WiFi?

Overall sentiment: negative

**Pros**

- 💡 Great lights when working
- 👍 Intuitive controls (when working)
- 👍 Easy setup (sometimes)
- 👍 Good for new hobbyists

**Cons**

- 🐛 Constant disconnects
- 🐛 Frequent crashes
- 🐛 Difficult to connect
- 🐛 Unreliable WiFi connectivity
- 🐛 App loses settings
- 🐛 Poor user interface
- 🐛 Long loading times
- 🐛 Needs frequent reloads/reinstalls
- 🐛 Outdated app
- 🐛 Poor customer support
- 🐛 High cost for unreliable app

**Commonly reported bugs**

- App crashes during operation
- App disconnects from WiFi
- App loses saved settings
- App fails to log in
- App requires frequent reloads/reinstalls
- App not compatible with newer iOS versions
- App has long loading times
- App loses connection after iOS updates
- App randomly changes settings
- App does not support social media/Google login reliably
- App has connectivity issues with wireless routers
- App has graphical issues in charts
- App has weird ramping program behavior
- App does not save programs correctly
- App freezes

**Most requested features**

- Add Bluetooth connectivity
- Implement iCloud backup
- Improve app stability
- Update app for newer iOS versions
- Add dark mode
- Improve user interface for scheduling
- Provide clearer setup instructions

## Recent user reviews (10 of 65)

All indexed reviews: https://appshunter.io/ios/app/kessil-wifi/id1458081350/reviews.md

### 1/5 — Horrible app

*2026-05-29, version 1.11*

For 1500 dollars for 3 lights, I’d think that it wouldn’t take 20 minutes every time the app chooses to disconnect itself. Sometimes every 5 minutes, sometimes once an hour, sometimes every 3 days. This app is absolutely atrocious and for a premium lighting company to even associate themselves with it is disgusting. They have literally ruined the experience of owning their product products because of their lack of attention to their app. You can’t access the functionality of the lights without the app, but the app doesn’t work. This will be the last time I ever buy a Kessil product.

### 1/5 — Worst app ever written 0 stars

*2025-12-30, version 1.11*

I would not buy Kessil items

### 1/5 — This app makes me want to throw my lights away

*2025-12-18, version 1.11*

This may be one of the most frustrating apps built to configure IoT devices.

### 2/5 — Great when it works

*2025-12-13, version 1.11*

Just add a blue tooth. Constantly times out of WiFi. Just spent 2 hours getting back on after iPhone update. Baffling to me as good a company as Kessil is they let this go on. Just put a $10 k link dongle out there and put Bluetooth on the app. If that’s possible I would think so 🤷🏻‍♂️

### 1/5 — Terrible app terrible customer support

*2025-10-27, version 1.11*

App always crashes. Lights are poorly made. I should have gone with Radions. Customer support was no help.

### 1/5 — One massive headache

*2025-10-18, version 1.11*

Really difficult to connect to, the app is also buggy

### 1/5 — Don’t do it

*2025-01-18, version 1.11*

I am not the most tech savvy person but this app but this is ridiculous. If you are interested in becoming frustrated it is the app for you. Getting this connected is almost impossible. I lost connectivity after I had the app in place for  almost two years and have yet to reestablish. If there were a no star option it would still be too high

### 1/5 — Time To Do Better Kessil!!!

*2025-01-04, version 1.11*

This app and dongle have become useless. Major connectivity problems with a360x lights.

### 1/5 — Horrible

*2024-12-08, version 1.11*

This app will kill your livestock. While have this app controlling your settings it will randomly take on a mind of its own. For instance I have it set to ramp down at night eventually turning off at 7 pm, I woke up one night to find the light blasting at full power when it should have been off. The next day I found an angelfish, that I had for years, somehow came down with some sort of infection or ick. I am absolutely disgusted with Kessil for this, never again will I buy another product of theirs.

### 1/5 — Beyond Buggy

*2024-10-15, version 1.11*

The app when you can get it to work is fine. I’ve found that directly connecting to the Ap9X or WiFi dongle own internal WiFi yields the best results. I noticed that after IOS 18 I’m logged out and can no longer log in through Google which means I cannot backup my settings.
 This is a huge problem for someone like me that has multiple clients using Kessil lighting.

## Frequently asked questions about Kessil WiFi

### What does the Kessil WiFi app do?

The Kessil WiFi app allows you to remotely control Kessil X-Series aquarium LED lights. You can customize color and intensity, create personalized light schedules to simulate natural sun and moon cycles, and group lights for advanced programming.

### What are the key features of the Kessil WiFi app?

Key features include full color control with custom color saving, flexible grouping for programming, custom light schedules with Program Mode, Lunar Cycle Mode, Coral Acclimation Mode, and special effects for programs. It also supports over-the-air firmware updates and cloud backup.

### Is the Kessil WiFi app free to use?

Yes, the Kessil WiFi app is free to download and use. The provided data indicates no in-app purchases or ads, suggesting it is a free application.

### What equipment do I need to use the Kessil WiFi app?

To use the Kessil WiFi app, you will need compatible Kessil X-Series lights and a Kessil WiFi Dongle. The app is designed to connect easily with these components within minutes.

### How can the Kessil WiFi app help my aquarium?

The app helps create a personalized ocean environment for your aquarium. You can simulate natural light cycles to promote healthy coral and plant growth, highlight your fish, and easily manage your lighting setup for optimal conditions.

## Version history (last 5 releases)

### 1.11 — 2021-08-16

The Apex compatibility for the Kessil AP9X and WiFi Dongle is finally here1. Support Apex Mode (in the connection process, make sure to choose the same wireless router that your Apex connects to).2. Includes the latest AP9X firmware v1.4.20 and WiFi Dongle v1.5.13, once the app is connected to the devices, it will automatically prompt a Firmware-Over-The-Air update. Required for Apex compatibility.3. Miscellaneous bug fixes and performance improvement.4. Now supports WPA-PSK encryption mode.

### 1.9 — 2021-04-06

1. Support the new Kessil A500X Tuna Blue - designed for SPS corals! Check out our website for more details. More improvements are under work, stay tuned!

### 1.8 — 2020-10-17

1. Miscellaneous bug fixes and performance improvement

### 1.7 — 2020-10-08

1. Support AP9X EU version
2. Support iOS 14

### 1.6 — 2020-08-23

1. Includes the latest Kessil AP9X firmware v1.4, once the app is connected to the Kessil AP9X, it will automatically prompt a FOTA (Firmware Over The Air) update
    - Support Wi-Fi 5GHz
    - Fix programming issues
2. Includes the latest Kessil WiFi Dongle firmware v1.5, once the app is connected to the Kessil WiFi Dongle, it will automatically prompt a FOTA (Firmware Over The Air) update
    - Improve WiFi Dongle connection process and stability
3. Improve Wi-Fi connection process
4. Miscellaneous bug fixes and performance improvement 
5. Improve cloud backup/restore function. Go to app Settings tab and login to backup your programs and lamp information.

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## More apps by Dicon Lighting

- [Kessil AP700 Controller(PAD)](https://appshunter.io/ios/app/kessil-ap700-controllerpad/id910772006)
- [Kessil AP700 Controller](https://appshunter.io/ios/app/kessil-ap700-controller/id1097431839)
- [Fiilex WiFi Controller - Phone 1.0](https://appshunter.io/ios/app/fiilex-wifi-controller-phone-10/id1123974694)

All apps by Dicon Lighting: https://appshunter.io/developer/932272980

## Related topics

[kessil wifi](https://appshunter.io/ios/topics/kessil-wifi) · [kessil](https://appshunter.io/ios/topics/kessil) · [kessil ap700 controller](https://appshunter.io/ios/topics/kessil-ap700-controller) · [fish tank lig](https://appshunter.io/ios/topics/fish-tank-lig)

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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 2026-08-26.*