# hDrop App vs Onda Endurance

The clearest difference is in-app purchases: Onda Endurance at none against hDrop App's 2. Onda Endurance also leads on update cadence (daily vs every 2 weeks). hDrop App's advantage is iOS requirement (15.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. hDrop App sells 2 in-app purchases, starting at $12.99 per month. Onda Endurance asks for nothing beyond the download.

hDrop App ships an update every 2 weeks, Onda Endurance daily. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | hDrop App | Onda Endurance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (13 ratings)](https://appshunter.io/ios/app/hdrop-app/id1525159399/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 47.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 60 MB | 18 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hDrop Technologies Inc.](https://appshunter.io/developer/1525159401) | [Metrica Fit LLC](https://appshunter.io/developer/6774709620) |

## What reviewers say

### 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 |


### Onda Endurance

[App page](https://appshunter.io/ios/app/onda-endurance/id6774709618)

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

**In-app purchases:** none


## Frequently asked questions

### Is hDrop App free?

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

### Is Onda Endurance free?

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

### Do hDrop App or Onda Endurance have ads?

Neither hDrop App nor Onda Endurance shows ads.

### Which is updated more often, hDrop App or Onda Endurance?

hDrop App ships an update every 2 weeks, and Onda Endurance daily. Most recently, hDrop App was updated on November 7, 2026 and Onda Endurance on October 31, 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.*