# Sip vs Sip

The clearest difference is ads: Sip at none against Sip's shown. Sip also leads on update cadence (weekly vs every 2 months). Sip's advantage is iOS requirement (15.1 vs 18.6). On price, in-app purchases and device support there is nothing between them.

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

Sip ships an update every 2 months, Sip weekly. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sip | Sip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sip-dynamic-hydration/id6764423318/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 28 MB | 6 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [akira kawata](https://appshunter.io/developer/1871950443) | [Michael Brockman](https://appshunter.io/developer/1212422162) |

## What reviewers say

### Sip

[App page](https://appshunter.io/ios/app/sip-smart-hydration-tracker/id6758857834)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sip

[App page](https://appshunter.io/ios/app/sip-dynamic-hydration/id6764423318)

This app tracks hydration by modeling your body's real-time fluid status using a decay algorithm. It automatically adjusts your daily water intake goals based on weather and activity, syncing seamlessly with Apple Health.

**Highlights:** Real-time hydration decay modeling, Adaptive goal setting, One-tap Quick Log buttons, Live Activity & Dynamic Island support, Interactive Widgets, Deep Apple Health integration, Streak motivation system

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sip free?

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

### Is Sip free?

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

### Do Sip or Sip have ads?

Sip shows ads; Sip does not.

### Which is updated more often, Sip or Sip?

Sip ships an update every 2 months, and Sip weekly. Most recently, Sip was updated on September 18, 2026 and Sip on September 21, 2026.

---

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