# Open Minis vs ReadOS

The clearest difference is in-app purchases: Open Minis at none against ReadOS's 2. Open Minis also leads on update cadence (weekly vs monthly) and ratings volume (99 vs 8). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. ReadOS sells 2 in-app purchases, starting at $19.99 per year. Open Minis asks for nothing beyond the download.

ReadOS holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Open Minis has 99 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 96% of Open Minis's written reviews are positive against 100% of ReadOS's.

Open Minis ships an update weekly, ReadOS monthly. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Open Minis | ReadOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (99 ratings)](https://appshunter.io/ios/app/open-minis/id6759188481/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/reados/id6796672534/reviews)** |
| Number of ratings | **99** | 8 |
| Positive reviews | 96.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Free** | Freemium |
| Size | 398 MB | 993 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [森 王](https://appshunter.io/developer/1522405790) | [秀芳 王](https://appshunter.io/developer/1893898139) |

## What reviewers say

### Open Minis

[App page](https://appshunter.io/ios/app/open-minis/id6759188481)

This AI agent runs locally on your device, taking actions like browsing the web, managing your schedule, and controlling smart home devices. It integrates deeply with iOS frameworks and allows you to bring your own API keys from various AI providers. Customize its capabilities with a skills system and enjoy persistent memory for a personalized experience.

**Highlights:** On-device AI agent, Multi-model AI provider support, Deep iOS framework integration, Built-in web browser, Customizable skills system, Persistent memory, Siri Shortcuts integration

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

**In-app purchases:** none


### ReadOS

[App page](https://appshunter.io/ios/app/reados/id6796672534)

This app is an AI-powered workspace for iPad that helps you read, research, and create. It connects your source materials and project context, allowing you to move seamlessly from understanding to creation. Features include AI summarization, knowledge mapping, and document analysis.

**Highlights:** AI-powered research agent, Contextual reading and note-taking, Knowledge mapping and visualization, Document, spreadsheet, and presentation creation, Web browsing and data analysis, Audio and video transcription, Multi-step task automation

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReadOS Pro Annual | $19.99 | per year |
| ReadOS Pro Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is Open Minis free?

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

### Is ReadOS free?

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

### Which has better reviews, Open Minis or ReadOS?

ReadOS is rated higher. Open Minis averages 4.8 out of 5 from 99 ratings, while ReadOS averages 5.0 from 8 ratings.

### Do Open Minis or ReadOS have ads?

Neither Open Minis nor ReadOS shows ads.

### Which is updated more often, Open Minis or ReadOS?

Open Minis ships an update weekly, and ReadOS monthly. Most recently, Open Minis was updated on November 9, 2026 and ReadOS 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.*