# H2O vs HydrateTap

The clearest difference is update cadence: H2O at every 3 days against HydrateTap's every 6 months. HydrateTap's advantage is iOS requirement (18.0 vs 26.0). 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 HydrateTap sells 3 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

H2O ships an update every 3 days, HydrateTap every 6 months. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | H2O | HydrateTap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (166 ratings)](https://appshunter.io/ios/app/h2o-water-tracker/id1161140846/reviews)** | — |
| Number of ratings | **166** | — |
| Positive reviews | 84.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 months |
| Monetization | Free | — |
| Size | 48 MB | 65 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 12+ |
| Developer | [Lunarbits LLC](https://appshunter.io/developer/6799532918) | [Eldin Mujovic](https://appshunter.io/developer/1608171214) |

## 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


### HydrateTap

[App page](https://appshunter.io/ios/app/hydratetap-water-tracker/id6749263836)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HydrateTap Plus | $0.99 | per 7 days |
| Theme Pack | $1.99 | one-time |
| HydrateTap Pro | $4.99 | one-time |


## Frequently asked questions

### Is H2O free?

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

### Is HydrateTap free?

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

### Do H2O or HydrateTap have ads?

Neither H2O nor HydrateTap shows ads.

### Which is updated more often, H2O or HydrateTap?

H2O ships an update every 3 days, and HydrateTap every 6 months. Most recently, H2O was updated on October 29, 2026 and HydrateTap on October 28, 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.*