# Water Tracker vs Oxygon

The clearest difference is update cadence: Oxygon at every 10 days against Water Tracker's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Water Tracker sells 2 in-app purchases, starting at $0.99 per 7 days and Oxygon sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Water Tracker ships an update every 2 months, Oxygon every 10 days. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Water Tracker | Oxygon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 26 MB | 32 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [W12 Consultoria](https://appshunter.io/developer/1812317573) | [Roberto Zanon](https://appshunter.io/developer/6790301299) |

## What reviewers say

### Water Tracker

[App page](https://appshunter.io/ios/app/water-tracker-thisdrinknow/id6749119307)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly PRO | $0.99 | per 7 days |
| Lifetime | $6.99 | one-time |


### Oxygon

[App page](https://appshunter.io/ios/app/oxygon/id6796728801)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oxygon Pro Monthly | $9.99 | per month |
| Oxygon Pro Annual | $69.99 | per year |


## Frequently asked questions

### Is Water Tracker free?

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

### Is Oxygon free?

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

### Do Water Tracker or Oxygon have ads?

Neither Water Tracker nor Oxygon shows ads.

### Which is updated more often, Water Tracker or Oxygon?

Water Tracker ships an update every 2 months, and Oxygon every 10 days. Most recently, Water Tracker was updated on October 8, 2026 and Oxygon on October 4, 2026.

---

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