# CosmicChat by Mistyoz AI vs OpenShell

The clearest difference is update cadence: OpenShell at every 3 days against CosmicChat by Mistyoz AI's every 10 days. On price, ads, 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.

CosmicChat by Mistyoz AI ships an update every 10 days, OpenShell every 3 days. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | CosmicChat by Mistyoz AI | OpenShell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cosmicchat-by-mistyoz-ai/id6751541291/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 3.2 GB | 15 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [MISTYOZ AI PRIVATE LIMITED](https://appshunter.io/developer/1835670764) | [seungkoo lee](https://appshunter.io/developer/1862664481) |

## What reviewers say

### CosmicChat by Mistyoz AI

[App page](https://appshunter.io/ios/app/cosmicchat-by-mistyoz-ai/id6751541291)

Engage in private conversations with advanced AI models that run entirely on your device. Choose from various model sizes for optimal performance and enjoy features like conversation history and customizable interfaces without needing an internet connection.

**Highlights:** Offline AI conversations, Multiple LLM model sizes, Local data processing, Conversation history, Customizable chat interface, Real-time response generation

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenShell

[App page](https://appshunter.io/ios/app/openshell/id6762048319)

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

**In-app purchases:** none


## Frequently asked questions

### Is CosmicChat by Mistyoz AI free?

CosmicChat by Mistyoz AI is free to download, with no in-app purchases.

### Is OpenShell free?

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

### Do CosmicChat by Mistyoz AI or OpenShell have ads?

Neither CosmicChat by Mistyoz AI nor OpenShell shows ads.

### Which is updated more often, CosmicChat by Mistyoz AI or OpenShell?

CosmicChat by Mistyoz AI ships an update every 10 days, and OpenShell every 3 days. Most recently, CosmicChat by Mistyoz AI was updated on September 10, 2026 and OpenShell on September 20, 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.*