# DIAMOND-LINQ — Water system info & control

> Control and monitor DIAMOND H2O water treatment systems via Bluetooth. (iPhone/iPad app by Diamond H2O.)

- Source: https://appshunter.io/ios/app/diamond-linq/id1448273058 (this page in markdown: same URL + `.md`)
- Developer: [Diamond H2O](https://appshunter.io/developer/1448273057)
- Category: Lifestyle, Utilities
- Price: Free
- Rating: 4.70/5 from 66 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 23 MB
- Languages: American English
- Released: 2019-01-16
- Data updated: 2026-07-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/diamond-linq/id1448273058/reviews.md

## What is DIAMOND?

DIAMOND-LINQ makes setting up and monitoring your DIAMOND H2O water treatment equipment easier than ever before! 
 
When paired with a DIAMOND H2O valve, the user, through the app, can perform the following functions:
 
•	Control & monitor valve settings & status (i.e. set the time)
•	View & understand water usage information
•	Start regeneration or backwash cycle from your Bluetooth enabled device
•	Set / view the servicing water treatment dealer information
•	Comprehend & utilize basic trouble shooting techniques due to more customer friendly interface
•	Connect to all of your valves* in your system (DIAMOND H2O valve dependent*)
•	Update firmware

## Key features

- Control and monitor valve settings
- View water usage information
- Start regeneration/backwash cycles
- Set dealer information
- Basic troubleshooting
- Connect to multiple valves
- Update firmware

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/diamond-linq/id1448273058/reviews.md

### 5/5 — Great water softener

*2022-07-20*

Wish I would have done this sooner.

## Frequently asked questions about DIAMOND

### What can DIAMOND-LINQ do?

DIAMOND-LINQ allows you to control and monitor your DIAMOND H2O water treatment equipment. You can adjust valve settings, view water usage, start regeneration cycles, and access troubleshooting guides.

### Is DIAMOND-LINQ free to use?

Yes, DIAMOND-LINQ is available for free download and use. It does not have any in-app purchases or advertisements.

### What devices does DIAMOND-LINQ support?

DIAMOND-LINQ is compatible with iPhone, iPad, and iPod devices. It requires a Bluetooth-enabled device to connect to your DIAMOND H2O valve.

### How often is DIAMOND-LINQ updated?

The app was last updated on July 30, 2025, with version 6.13.1. This indicates regular updates to ensure functionality and compatibility.

### Can DIAMOND-LINQ connect to multiple valves?

Yes, DIAMOND-LINQ can connect to all of your valves in a system, provided they are DIAMOND H2O valves and support the connection.

### What is the age rating for DIAMOND-LINQ?

DIAMOND-LINQ has an age rating of 4+, making it suitable for users of all ages who own compatible water treatment systems.

### Does DIAMOND-LINQ have ads?

No, DIAMOND-LINQ is ad-free. You can use all its features without encountering any advertisements.

### Where can I find information about my servicing dealer using DIAMOND-LINQ?

DIAMOND-LINQ allows you to set and view the information for your servicing water treatment dealer directly within the app for easy access.

## Version history (last 5 releases)

### 6.13.1 — 2025-07-30

* Bug fixes and enhancements

### 6.12.2 — 2025-04-09

* Updated C6.12 firmware

### 6.11.1 — 2025-03-19

* New C6.11 and L6.03 firmware
* Bug fixes / Enhancements

### 6.10.2 — 2024-11-23

* Bug fix

### 6.10.1 — 2024-11-04

* New C4.37 firmware and C6.10 firmware
* Bug fixes

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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 2026-07-21.*