# hDrop App vs Day Zero

The clearest difference is rating: Day Zero at 5.0 against hDrop App's 3.8. Day Zero also leads on in-app purchases (none vs 2). hDrop App's advantage is ratings volume (12 vs 1) and iOS requirement (15.6 vs 18.0). On price, ads, monetization model 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. Day Zero asks for nothing beyond the download.

Day Zero holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: hDrop App has 12 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | hDrop App | Day Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (12 ratings)](https://appshunter.io/ios/app/hdrop-app/id1525159399/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/day-zero-habit-ledger/id6787778663/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 43.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | Free |
| Size | 60 MB | 3 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hDrop Technologies Inc.](https://appshunter.io/developer/1525159401) | [Quentin Perrot](https://appshunter.io/developer/6787778666) |

## 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 |


### Day Zero

[App page](https://appshunter.io/ios/app/day-zero-habit-ledger/id6787778663)

This app helps you track habits by displaying the number of days since you last performed a specific action. It offers flexible scheduling, personalized feedback, and home screen widgets for easy logging. Designed for privacy, it stores all data locally on your device.

**Highlights:** Days since last action counter, Home screen widgets for logging, Flexible daily or weekly scheduling, Personalized voice and 'why' prompts, Pause and resume habits, Private by design, no accounts or servers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is hDrop App free?

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

### Is Day Zero free?

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

### Which has better reviews, hDrop App or Day Zero?

Day Zero is rated higher. hDrop App averages 3.8 out of 5 from 12 ratings, while Day Zero averages 5.0 from 1 ratings.

### Do hDrop App or Day Zero have ads?

Neither hDrop App nor Day Zero shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*