# HydroRing vs Water Reminder

The clearest difference is in-app purchases: Water Reminder at none against HydroRing's 1. Water Reminder also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HydroRing sells 1 one-off in-app purchase. Water Reminder asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | HydroRing | Water Reminder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Size | 2 MB | 36 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [torankirite](https://appshunter.io/developer/1883564850) | [Gunawan Santoso](https://appshunter.io/developer/1843786072) |

## What reviewers say

### HydroRing

[App page](https://appshunter.io/ios/app/hydroring-water-tracker/id6760393366)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HydroRing Premium | $3.99 | one-time |


### Water Reminder

[App page](https://appshunter.io/ios/app/water-reminder-aqua-tracker/id6766627584)

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

**In-app purchases:** none


## Frequently asked questions

### Is HydroRing free?

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

### Is Water Reminder free?

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

### Do HydroRing or Water Reminder have ads?

Neither HydroRing nor Water Reminder shows ads.

### Which is updated more often, HydroRing or Water Reminder?

HydroRing ships an update every 6 weeks, and Water Reminder every 6 weeks. Most recently, HydroRing was updated on October 31, 2026 and Water Reminder on October 31, 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.*