# Frontier X vs hDrop App

The clearest difference is rating: Frontier X at 4.6 against hDrop App's 3.8. Frontier X also leads on review sentiment (82% vs 44%) and ratings volume (318 vs 12). hDrop App's advantage is monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Frontier X sells 2 in-app purchases, starting at $14.99 per month and hDrop App sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Frontier X holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Frontier X has 318 ratings behind it against 12, 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 44% of hDrop App's.

Frontier X ships an update every 3 weeks, hDrop App fortnightly. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Frontier X | hDrop App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (318 ratings)](https://appshunter.io/ios/app/frontier-x/id1483444499/reviews)** | [3.8 (12 ratings)](https://appshunter.io/ios/app/hdrop-app/id1525159399/reviews) |
| Number of ratings | **318** | 12 |
| Positive reviews | **81.8% of reviews** | 43.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 569 MB | 60 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fourthfrontier](https://appshunter.io/developer/1331846764) | [hDrop Technologies Inc.](https://appshunter.io/developer/1525159401) |

## 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


### hDrop App

[App page](https://appshunter.io/ios/app/hdrop-app/id1525159399)

This wearable sensor tracks fluid and sodium loss through sweat during exercise. It provides personalized hydration insights based on your unique physiology, helping endurance athletes optimize their performance. Analyze sweat loss, sodium intake, and rate trends to build a tailored hydration strategy.

**Highlights:** Wearable sweat sensor, Fluid and sodium loss tracking, Personalized hydration strategy, Sweat rate trend analysis, Workout data analysis, Comparison across conditions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| hDrop Lab | $12.99 | per month |
| hDrop Lab | $89.99 | per year |


## Frequently asked questions

### Is Frontier X free?

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

### Is hDrop App free?

hDrop App is free to download, with in-app purchases available.

### Which has better reviews, Frontier X or hDrop App?

Frontier X is rated higher. Frontier X averages 4.6 out of 5 from 318 ratings, while hDrop App averages 3.8 from 12 ratings.

### Do Frontier X or hDrop App have ads?

Neither Frontier X nor hDrop App shows ads.

### Which is updated more often, Frontier X or hDrop App?

Frontier X ships an update every 3 weeks, and hDrop App fortnightly. Most recently, Frontier X was updated on October 16, 2026 and hDrop App on October 18, 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.*