# Phase vs Sip

The clearest difference is in-app purchases: Sip at none against Phase's 6. Sip also leads on update cadence (weekly vs every 5 weeks). Phase's advantage is ratings volume (4 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Phase sells 6 in-app purchases, starting at $0.99 per 7 days. Sip asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Phase against 5.0 for Sip. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Phase ships an update every 5 weeks, Sip weekly. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Phase | Sip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/phase-sleep-schedule-reset/id6759457939/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/sip-dynamic-hydration/id6764423318/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 32 MB | 6 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Youssef Ismaili](https://appshunter.io/developer/1696488085) | [Michael Brockman](https://appshunter.io/developer/1212422162) |

## What reviewers say

### Phase

[App page](https://appshunter.io/ios/app/phase-sleep-schedule-reset/id6759457939)

This app guides you through a personalized daily plan to gradually shift your sleep schedule. It provides timed nudges based on your local sunrise and sunset to help you achieve your desired bedtime and wake-up times.

**Highlights:** Personalized day-by-day sleep schedule, Science-backed daily nudges, Multiple sleep programs for different needs, Location-aware sunrise/sunset sync, Offline functionality, HealthKit integration, Home and Lock Screen widgets

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phase Pro | $0.99 | per 7 days |
| Phase Pro | $5.99 | per year |
| Lifetime Phase Pro | $1.99 | one-time |
| Pro | $2.99 | one-time |
| Lifetime Pro | $4.99 | one-time |
| Phase Pro | $9.99 | one-time |


### 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 Phase free?

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

### Is Sip free?

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

### Which has better reviews, Phase or Sip?

Phase and Sip are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Phase or Sip have ads?

Neither Phase nor Sip shows ads.

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

Phase ships an update every 5 weeks, and Sip weekly. Most recently, Phase was updated on October 16, 2026 and Sip on October 8, 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.*