# Dullaby vs CoreOS

The clearest difference is device support: CoreOS at 2 against Dullaby's —. CoreOS also leads on iOS requirement (18.0 vs 26.2). On price and in-app purchases there is nothing between them.

Both are free to download. Dullaby sells 3 in-app purchases, starting at $0.99 per 7 days and CoreOS sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Dullaby | CoreOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (14 ratings)](https://appshunter.io/ios/app/coreos/id6761029041/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | — | No |
| Update frequency | — | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 167 MB | 31 MB |
| Requires iOS | 26.2 | **18.0** |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Frederik Roessell](https://appshunter.io/developer/998838836) | [Jack Blank](https://appshunter.io/developer/1860957944) |

## What reviewers say

### Dullaby

[App page](https://appshunter.io/ios/app/dullaby/id6759853941)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $0.99 | per 7 days |
| Premium Monthly | $3.99 | per month |
| Subscriptions | $19.99 | per year |


### CoreOS

[App page](https://appshunter.io/ios/app/coreos/id6761029041)

This app provides a comprehensive system for optimizing your physical and mental well-being. It integrates intelligent workout tracking, advanced sleep monitoring, and structured habit-building tools to enhance daily performance and consistency.

**Highlights:** AI-powered workout tracking, Sleep optimization system, Daily performance tracking, Smart habit building, Clean, powerful interface, Integrated system approach

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly | $9.99 | per month |
| coreOsAbandonPaywall | $29.99 | per year |
| yearly | $49.99 | per year |


## Frequently asked questions

### Is Dullaby free?

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

### Is CoreOS free?

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

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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.*