# TMC Link

> Smart aquarium lighting control system for simulating natural sunlight. (iPhone/iPad app by HM ELECTRONICS CO., LTD..)

- Source: https://appshunter.io/ios/app/tmc-link/id1400651626 (this page in markdown: same URL + `.md`)
- Developer: [HM ELECTRONICS CO., LTD.](https://appshunter.io/developer/922849695)
- Category: Entertainment, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 9.2 · 55 MB
- Languages: American English, Japanese, Chinese (Traditional, Taiwan)
- Released: 2018-09-20
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tmc-link/id1400651626/reviews.md

## What is TMC Link?

TMC Link is used to control smart aquarium lighting system. TMC Link lighting system can emit full spectrum to simulate sunlight changes during a day. TMC Link series is suitable for applying to the corals, tropical fishes and freshwater aquatics which live in neritic or deeper zones.

## Key features

- Control smart aquarium lighting
- Simulate daily sunlight changes
- Full spectrum lighting
- Suitable for corals and fish
- Adjustable for neritic/deeper zones

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/tmc-link/id1400651626/reviews.md

### 1/5 — Awful

*2025-11-23, version 1.1.7*

App doesn’t work, can’t even enter a password for the light as the connect button is greyed out. Clearly don’t care as someone else 4 years ago has the same issue. Happy to take my money though.

### 1/5 — Not connecting

*2020-10-27, version 1.1.3*

It won’t work 😞😞😞

### 1/5 — Asks me to enter a password without allowing me to connect

*2020-05-28, version 1.1.0.11*

When connecting to the lights I am prompted to enter a password, I can put a seemingly infinite numbers in but it still will not allow me to submit any password and then connect

### 2/5 — Very poor

*2019-09-09, version 1.0.8*

Good colour spectrum but why can you not get it to hold a setting? You can set sunrise and sunset, but every morning you have to reset colours. Hopeless...nowhere near as good as AI Prime

### 4/5 — Good spectrum of light

*2019-03-14, version 1.0.3*

I do really like these light, the colour ranges are great. 

Only down side, I can’t get them to switch of at the end on a personal setting.  Lights go out, but come back on by themselves in a dull blue.

### 3/5 — TMC REEF PHOTON

*2019-03-09, version 1.0.3*

Overall happy with spectrum of light but needs a light off in the advanced settings for those of us who like no lights on

## Frequently asked questions about TMC Link

### What is TMC Link used for?

TMC Link is used to control smart aquarium lighting systems. It allows users to simulate natural sunlight changes throughout the day, creating an optimal environment for various aquatic life.

### What types of aquariums is TMC Link suitable for?

TMC Link is suitable for aquariums housing corals, tropical fish, and freshwater aquatics that live in neritic or deeper zones.

### Does TMC Link offer full spectrum lighting?

Yes, the TMC Link lighting system can emit a full spectrum to simulate sunlight changes during the day.

### What devices can I use TMC Link on?

TMC Link is supported on iPhone and iPod devices.

### When was TMC Link last updated?

TMC Link was last updated on January 21, 2022, with version 1.1.7.

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

TMC Link has an age rating of 4+.

### Does TMC Link have ads?

No, TMC Link does not contain advertisements.

### Is TMC Link free to download?

Yes, TMC Link is available for free download.

## Version history (last 5 releases)

### 1.1.7 — 2022-01-21

Fix bug

### 1.1.6 — 2021-12-07

Add Reef Ion

### 1.1.5 — 2020-11-05

Add Reef Pulsar

### 1.1.3 — 2020-10-02

Fix bug

### 1.1.2 — 2020-07-22

Firmware Update

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## More apps by HM ELECTRONICS CO., LTD.

- [Orphek Ocean](https://appshunter.io/ios/app/orphek-ocean/id1332869416)
- [MyHME](https://appshunter.io/ios/app/myhme/id1574479458)
- [Reef AccuDose](https://appshunter.io/ios/app/reef-accudose/id1588183912)
- [Waterbox Aquariums](https://appshunter.io/ios/app/waterbox-aquariums/id6768922633)

All apps by HM ELECTRONICS CO., LTD.: https://appshunter.io/developer/922849695

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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 2026-06-01.*