# H2O vs Hydration Tracker & Reminder

The clearest difference is rating: Hydration Tracker & Reminder at 5.0 against H2O's 4.5. Hydration Tracker & Reminder also leads on iOS requirement (17.6 vs 26.0). H2O's advantage is update cadence (every 3 days vs every 6 months) and monetization model (free vs freemium). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. H2O sells 4 in-app purchases, starting at $1.99 per month and Hydration Tracker & Reminder sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Hydration Tracker & Reminder holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: H2O has 166 ratings behind it against 10, so its average is the more settled of the two.

H2O ships an update every 3 days, Hydration Tracker & Reminder every 6 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | H2O | Hydration Tracker & Reminder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (166 ratings)](https://appshunter.io/ios/app/h2o-water-tracker/id1161140846/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/hydration-tracker-and-reminder/id6753086866/reviews)** |
| Number of ratings | **166** | 10 |
| Positive reviews | 84.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 months |
| Monetization | **Free** | Freemium |
| Size | 48 MB | 1 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Lunarbits LLC](https://appshunter.io/developer/6799532918) | [Nathaniel Tedesco](https://appshunter.io/developer/1575103950) |

## What reviewers say

### H2O

[App page](https://appshunter.io/ios/app/h2o-water-tracker/id1161140846)

This application helps you monitor your daily water consumption to ensure you stay adequately hydrated. It offers a visually appealing interface with features for quickly logging intake and reviewing your progress.

**Highlights:** Log water intake quickly, Preset water amounts, Weekly intake graph, Full history of entries, HealthKit integration, Intuitive interface

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| H2O Pro Monthly | $1.99 | per month |
| H2O Pro Yearly | $9.99 | per year |
| H2O Pro Yearly | $9.99 | per year |
| H2O Pro Lifetime | $19.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive interface
- 💰 Free to use
- 🚫 Ad-free experience
- ✨ Clean and minimalist design
- 🚀 Quick and easy logging

**What reviewers complain about**

- 🐛 App crashes when accessing settings
- 🐛 App shuts off when accessing settings
- 🐛 Graph feature not working
- 💡 Missing reminder notifications
- 💡 Cannot edit previous day's entries

**Reported bugs**

- App crashes when accessing settings
- App shuts off when accessing settings
- Graph feature not working
- App closes when goal is reached
- Glitches when reaching goal

**Requested features**

- Add reminder notifications
- Allow editing of previous day's entries
- Add metric units (ml/L)
- Add widget support
- Add export to HealthKit option


### Hydration Tracker & Reminder

[App page](https://appshunter.io/ios/app/hydration-tracker-and-reminder/id6753086866)

Easily monitor your daily water intake with personalized goals and gentle reminders. Track your progress over time with detailed statistics. Your data is kept private and stored only on your device.

**Highlights:** Daily hydration tracking, Customizable goals, Gentle reminders, Progress tracking, Advanced statistics, Streak tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Yearly | $9.99 | per year |


## Frequently asked questions

### Is H2O free?

H2O is free to download, with in-app purchases available.

### Is Hydration Tracker & Reminder free?

Hydration Tracker & Reminder is free to download, with in-app purchases available.

### Which has better reviews, H2O or Hydration Tracker & Reminder?

Hydration Tracker & Reminder is rated higher. H2O averages 4.5 out of 5 from 166 ratings, while Hydration Tracker & Reminder averages 5.0 from 10 ratings.

### Do H2O or Hydration Tracker & Reminder have ads?

Neither H2O nor Hydration Tracker & Reminder shows ads.

### Which is updated more often, H2O or Hydration Tracker & Reminder?

H2O ships an update every 3 days, and Hydration Tracker & Reminder every 6 months. Most recently, H2O was updated on October 29, 2026 and Hydration Tracker & Reminder on October 25, 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.*