# DIAMOND vs Halo Collar

The clearest difference is rating: DIAMOND at 4.7 against Halo Collar's 4.1. DIAMOND also leads on review sentiment (100% vs 70%) and device support (3 vs 1). Halo Collar's advantage is ratings volume (9.6K vs 94) and update cadence (every 3 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DIAMOND holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Halo Collar has 9.6K ratings behind it against 94, so its average is the more settled of the two. Written reviews point the same way: 100% of DIAMOND's written reviews are positive against 70% of Halo Collar's.

DIAMOND ships an update every 3 months, Halo Collar every 3 weeks. The most recent releases landed on October 29, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | DIAMOND | Halo Collar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (94 ratings)](https://appshunter.io/ios/app/diamond-linq/id1448273058/reviews)** | [4.1 (9.6K ratings)](https://appshunter.io/ios/app/halo-collar/id1476830649/reviews) |
| Number of ratings | 94 | **9.6K** |
| Positive reviews | **100.0% of reviews** | 69.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 23 MB | 324 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Diamond H2O](https://appshunter.io/developer/1448273057) | [Protect Animals With Satellites, LLC](https://appshunter.io/developer/1476830648) |

## What reviewers say

### DIAMOND

[App page](https://appshunter.io/ios/app/diamond-linq/id1448273058)

This app allows users to easily set up and monitor their water treatment equipment. Users can control valve settings, view water usage, and initiate system cycles directly from their Bluetooth-enabled device.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Halo Collar

[App page](https://appshunter.io/ios/app/halo-collar/id1476830649)

This app manages a smart collar system that creates virtual fences to keep dogs safely contained. It offers expert training, real-time activity tracking, and instant communication with your pet from anywhere.

**Highlights:** Virtual fence creation, Expert dog training methods, Real-time safety tracking, Activity monitoring, Instant pet communication, Customizable feedback

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Best thing I've ever bought!
- 🔒 Great Service
- 👍 Problem Solved!
- 👍 Great for larger properties!
- 👍 Life savers

**What reviewers complain about**

- 🐛 Loses connection
- 🐛 Awful.
- 🐛 Good, not great
- 🔋 I wish the 'zap' was stronger.
- 🐛 Mediocre at best

**Reported bugs**

- GPS inaccuracies
- Collar malfunctions
- Connectivity issues
- Battery life problems

**Requested features**

- Custom No Go Zones
- Remote control option


## Frequently asked questions

### Is DIAMOND free?

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

### Is Halo Collar free?

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

### Which has better reviews, DIAMOND or Halo Collar?

DIAMOND is rated higher. DIAMOND averages 4.7 out of 5 from 94 ratings, while Halo Collar averages 4.1 from 9.6K ratings.

### Do DIAMOND or Halo Collar have ads?

Neither DIAMOND nor Halo Collar shows ads.

### Which is updated more often, DIAMOND or Halo Collar?

DIAMOND ships an update every 3 months, and Halo Collar every 3 weeks. Most recently, DIAMOND was updated on October 29, 2026 and Halo Collar on November 2, 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.*