# One Space vs Water Tracker by Water.Mate

The clearest difference is in-app purchases: One Space at none against Water Tracker by Water.Mate's 3. One Space also leads on device support (3 vs 1) and iOS requirement (13.0.0 vs 16.0). Water Tracker by Water.Mate's advantage is update cadence (every 3 weeks vs every 36 months). On price and ads there is nothing between them.

Both are free to download. Water Tracker by Water.Mate sells 3 in-app purchases, starting at $6.99 per 3 months. One Space asks for nothing beyond the download.

One Space ships an update every 36 months, Water Tracker by Water.Mate every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | One Space | Water Tracker by Water.Mate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (14 ratings)](https://appshunter.io/ios/app/water-tracker-by-watermate/id6737431040/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 25 MB | 64 MB |
| Requires iOS | **13.0.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [P&S Property Investments Pty Limited](https://appshunter.io/developer/1528295320) | [Hanna Chebotarova](https://appshunter.io/developer/1628325972) |

## What reviewers say

### One Space

[App page](https://appshunter.io/ios/app/one-space/id1528295318)

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

**In-app purchases:** none


### Water Tracker by Water.Mate

[App page](https://appshunter.io/ios/app/water-tracker-by-watermate/id6737431040)

This app helps you build a healthy habit of drinking water by tracking your intake, logging all beverages, and setting personalized hydration goals. It offers smart reminders and fun challenges to keep you motivated and provides a history of your consumption.

**Highlights:** Track daily water intake, Log all drinks, Set hydration goals, Join wellness challenges, Smart reminders, View intake history

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Water tracker for 3 months | $6.99 | per 3 months |
| Water tracker for 1 year | $9.99 | per year |
| Water tracker: lifetime access | $29.99 | one-time |


## Frequently asked questions

### Is One Space free?

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

### Is Water Tracker by Water.Mate free?

Water Tracker by Water.Mate is free to download, with in-app purchases available.

### Do One Space or Water Tracker by Water.Mate have ads?

Neither One Space nor Water Tracker by Water.Mate shows ads.

### Which is updated more often, One Space or Water Tracker by Water.Mate?

One Space ships an update every 36 months, and Water Tracker by Water.Mate every 3 weeks. Most recently, One Space was updated on November 3, 2026 and Water Tracker by Water.Mate on October 30, 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.*