# Phase vs SciReady

The clearest difference is update cadence: SciReady at every 3 days against Phase's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Phase sells 6 in-app purchases, starting at $0.99 per 7 days and SciReady sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Phase ships an update every 5 weeks, SciReady every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Phase | SciReady |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/phase-sleep-schedule-reset/id6759457939/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 32 MB | 16 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Youssef Ismaili](https://appshunter.io/developer/1696488085) | [开鑫 温](https://appshunter.io/developer/6808446783) |

## 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 |


### SciReady

[App page](https://appshunter.io/ios/app/sciready/id6809805951)

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SciReady Monthly | $0.99 | per month |
| SciReady Yearly | $14.99 | per year |
| SciReady One Month | $1.99 | one-time |
| SciReady Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Phase free?

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

### Is SciReady free?

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

### Do Phase or SciReady have ads?

Neither Phase nor SciReady shows ads.

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

Phase ships an update every 5 weeks, and SciReady every 3 days. Most recently, Phase was updated on October 31, 2026 and SciReady 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.*