# Halo Collar vs RIP Letters

The clearest difference is iOS requirement: Halo Collar at 16.0 against RIP Letters's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Halo Collar | RIP Letters |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (9.4K ratings)](https://appshunter.io/ios/app/halo-collar/id1476830649/reviews)** | — |
| Number of ratings | **9.4K** | — |
| Positive reviews | 69.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Paid | — |
| Size | 332 MB | 7 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Protect Animals With Satellites, LLC](https://appshunter.io/developer/1476830648) | [Local Edition](https://appshunter.io/developer/1097546389) |

## What reviewers say

### Halo Collar

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

This smart collar system creates virtual fences using GPS and beacons to keep your dog safely contained. It offers real-time activity tracking, training guidance from Cesar Millan, and customizable feedback to ensure your dog's safety and well-being.

**Highlights:** Virtual fence creation via app, GPS and GNSS satellite location, Cesar Millan expert training methods, Real-time safety and activity tracking, Customizable feedback and alerts, Indoor boundary setting with beacons

**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


### RIP Letters

[App page](https://appshunter.io/ios/app/rip-letters/id6792582345)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Halo Collar free?

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

### Is RIP Letters free?

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

### Do Halo Collar or RIP Letters have ads?

Neither Halo Collar nor RIP Letters shows ads.

### Which is updated more often, Halo Collar or RIP Letters?

Halo Collar ships an update every 3 weeks, and RIP Letters every 3 weeks. Most recently, Halo Collar was updated on October 18, 2026 and RIP Letters on October 14, 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.*