# HydroRing vs SmartSip

The clearest difference is in-app purchases: SmartSip at none against HydroRing's 1. HydroRing's advantage is iOS requirement (16.0 vs 18). 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. SmartSip asks for nothing beyond the download.

HydroRing ships an update every 6 weeks, SmartSip every 2 months. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | HydroRing | SmartSip |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 2 MB | 5 MB |
| Requires iOS | **16.0** | 18 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [torankirite](https://appshunter.io/developer/1883564850) | [长贵 周](https://appshunter.io/developer/6779968395) |

## 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 |


### SmartSip

[App page](https://appshunter.io/ios/app/smartsip-hydration-tracker/id6790656642)

**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 SmartSip free?

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

### Do HydroRing or SmartSip have ads?

Neither HydroRing nor SmartSip shows ads.

### Which is updated more often, HydroRing or SmartSip?

HydroRing ships an update every 6 weeks, and SmartSip every 2 months. Most recently, HydroRing was updated on October 17, 2026 and SmartSip on October 8, 2026.

---

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