# Frontier X vs Milo Link

The clearest difference is rating: Frontier X at 4.6 against Milo Link's 4.1. Frontier X also leads on review sentiment (82% vs 57%) and ratings volume (317 vs 28). Milo Link's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Frontier X sells 2 in-app purchases, starting at $14.99 per month. Milo Link asks for nothing beyond the download.

Frontier X holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: Frontier X has 317 ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 82% of Frontier X's written reviews are positive against 57% of Milo Link's.

Frontier X ships an update every 3 weeks, Milo Link monthly. The most recent releases landed on September 29, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Frontier X | Milo Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (317 ratings)](https://appshunter.io/ios/app/frontier-x/id1483444499/reviews)** | [4.1 (28 ratings)](https://appshunter.io/ios/app/milo-link/id1575731537/reviews) |
| Number of ratings | **317** | 28 |
| Positive reviews | **81.8% of reviews** | 57.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 571 MB | 88 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fourthfrontier](https://appshunter.io/developer/1331846764) | [Loose Cannon Systems](https://appshunter.io/developer/1543105578) |

## What reviewers say

### Frontier X

[App page](https://appshunter.io/ios/app/frontier-x/id1483444499)

Track your heart health and exercise performance with a smart chest strap monitor. Gain detailed insights into heart rate, rhythms, and training load. Receive personalized feedback and alerts to optimize your workouts and understand your body better.

**Highlights:** Heart Health Monitoring, Real-time Heart Rate & HRV, Breathing Rate & Strain Tracking, Activity Recording (24hrs), Personalized Vibration Alerts, AI-enabled Training Insights, Metabolic Profile Analytics (Premium)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $14.99 | per month |
| Yearly | $119.99 | per year |

**What reviewers like**

- 🚀 Amazing device
- 👍 Great HR data and insight
- 👍 Helpful in gaining more data
- 👍 Fantastic concept with excellent execution
- 👍 Loads of useful information

**What reviewers complain about**

- 🐛 Worse and worse as time goes by
- 🐛 ECG doesn't work
- 🐛 Chest strap issues, device keeps popping out
- 🐛 Paywalled functionality
- 🐛 Syncing issues, device keeps disconnecting

**Reported bugs**

- ECG stopped working
- Inaccurate breathing rate and other metrics
- Inability to edit activity details for indoor workouts
- Syncing issues with Garmin devices after firmware updates

**Requested features**

- Add interval markers
- Improve integration with Apple Fitness/Fitness+
- Add support for ANT+
- Improve compatibility with other fitness apps and devices
- Add more customization options for workouts


### Milo Link

[App page](https://appshunter.io/ios/app/milo-link/id1575731537)

This app serves as an official companion for a device, allowing users to update its software, customize settings like language, and access offline information. It ensures the device receives new features and performance improvements.

**Highlights:** Update device software, Customize device language, Access offline information, Learn about device features, Performance enhancements

**In-app purchases:** none


## Frequently asked questions

### Is Frontier X free?

Frontier X is free to download, with in-app purchases available.

### Is Milo Link free?

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

### Which has better reviews, Frontier X or Milo Link?

Frontier X is rated higher. Frontier X averages 4.6 out of 5 from 317 ratings, while Milo Link averages 4.1 from 28 ratings.

### Do Frontier X or Milo Link have ads?

Neither Frontier X nor Milo Link shows ads.

### Which is updated more often, Frontier X or Milo Link?

Frontier X ships an update every 3 weeks, and Milo Link monthly. Most recently, Frontier X was updated on September 29, 2026 and Milo Link on September 6, 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.*