# WaterKeep vs Sponge Hydration

The clearest difference is update cadence: WaterKeep at every 4 days against Sponge Hydration's every 5 weeks. Sponge Hydration's advantage is ratings volume (8 vs 2). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for WaterKeep against 5.0 for Sponge Hydration. Both are backed by a comparable volume of ratings — 2 and 8 respectively.

WaterKeep ships an update every 4 days, Sponge Hydration every 5 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | WaterKeep | Sponge Hydration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/waterkeep-daily-water-tracker/id6468182302/reviews) | [5.0 (8 ratings)](https://appshunter.io/ios/app/sponge-hydration/id6566195232/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 3 MB | 14 MB |
| Requires iOS | 16.1 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Parker Muery](https://appshunter.io/developer/1709593912) | [Christopher Eugene Miglio](https://appshunter.io/developer/1758759475) |

## What reviewers say

### WaterKeep

[App page](https://appshunter.io/ios/app/waterkeep-daily-water-tracker/id6468182302)

This app offers a simple and elegant way to track your daily water intake. With a minimalist design and one-tap logging, it makes staying hydrated hassle-free. Focus on your hydration goals without complex metrics or overwhelming graphs.

**Highlights:** Minimalist hydration tracking, One-tap logging, Elegant and simple interface, Clear intake display

**Features:** macOS Compatibility

**In-app purchases:** none


### Sponge Hydration

[App page](https://appshunter.io/ios/app/sponge-hydration/id6566195232)

Easily track your daily water intake with this intuitive tool. Sync your progress and maintain a clean, healthy lifestyle by monitoring your hydration levels.

**Highlights:** Water intake tracking, Data synchronization, Clean living focus, User-friendly interface

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

**In-app purchases:** none


## Frequently asked questions

### Is WaterKeep free?

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

### Is Sponge Hydration free?

Sponge Hydration is free to download, with no in-app purchases.

### Which has better reviews, WaterKeep or Sponge Hydration?

WaterKeep and Sponge Hydration are both rated 5.0 out of 5 on the App Store, from 2 and 8 ratings respectively.

### Do WaterKeep or Sponge Hydration have ads?

Neither WaterKeep nor Sponge Hydration shows ads.

### Which is updated more often, WaterKeep or Sponge Hydration?

WaterKeep ships an update every 4 days, and Sponge Hydration every 5 weeks. Most recently, WaterKeep was updated on October 18, 2026 and Sponge Hydration on October 24, 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.*