# iSleepIsWell vs SciReady

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

Both are free to download. iSleepIsWell sells 7 in-app purchases, starting at $1.99 per month 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.

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

## The numbers

| Metric | iSleepIsWell | SciReady |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/isleepiswell/id6757170588/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 41 MB | 16 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Naihe Hu](https://appshunter.io/developer/564180065) | [开鑫 温](https://appshunter.io/developer/6808446783) |

## What reviewers say

### iSleepIsWell

[App page](https://appshunter.io/ios/app/isleepiswell/id6757170588)

This app uses your Apple Watch data to provide detailed sleep insights, personalized AI coaching, and a dream journal. It offers relaxation tools and social challenges to help you improve your sleep quality and achieve better rest.

**Highlights:** Smart sleep tracking from Apple Watch, AI-powered personalized sleep coaching, Dream journal with interpretation modes, Social sleep challenges and leaderboards, Relaxation tools and guided exercises, Sleep analysis and habit correlation, Tonight's sleep prediction

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Yearly Pro | $14.99 | per year |
| Theme Pack | $0.99 | one-time |
| Advanced Sleep Program | $2.99 | one-time |
| Upgrade to Pro Ultra | $4.99 | one-time |
| Pro Member - Lifetime | $19.99 | one-time |
| Pro Ultra | $29.99 | 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 iSleepIsWell free?

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

### Is SciReady free?

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

### Do iSleepIsWell or SciReady have ads?

Neither iSleepIsWell nor SciReady shows ads.

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

iSleepIsWell ships an update every 5 months, and SciReady every 3 days. Most recently, iSleepIsWell 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.*