# Capacities vs Airia Chat

The clearest difference is rating: Airia Chat at 5.0 against Capacities's 4.3. Airia Chat also leads on in-app purchases (none vs 2). Capacities's advantage is ratings volume (116 vs 8). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Capacities sells 2 in-app purchases, starting at $17.99 per month. Airia Chat asks for nothing beyond the download.

Airia Chat holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Capacities has 116 ratings behind it against 8, so its average is the more settled of the two.

Capacities ships an update weekly, Airia Chat every 9 days. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Capacities | Airia Chat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (116 ratings)](https://appshunter.io/ios/app/capacities-notes-and-pkm/id1670188548/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/airia-chat/id6670690726/reviews)** |
| Number of ratings | **116** | 8 |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 990 MB | 45 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Capacities Labs GmbH](https://appshunter.io/developer/1670188550) | [Airia](https://appshunter.io/developer/1734135266) |

## What reviewers say

### Capacities

[App page](https://appshunter.io/ios/app/capacities-notes-and-pkm/id1670188548)

This app allows you to collect, connect, and reflect on your notes and ideas. Access your existing content, quickly capture new information, and discover connections between your thoughts. An integrated AI assistant is available for enhanced productivity.

**Highlights:** Daily notes for planning and reflection, Powerful search functionality, Quick capture of photos and content, Share sheet integration, AI assistant for note-taking, Browse and read notes, Explore connections between notes

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Capacities Pro | $17.99 | per month |
| Capacities Pro | $199.00 | per year |

**What reviewers like**

- 💡 Innovative date-based note-taking system
- 🎯 Powerful custom object types and organization
- 🔗 Excellent backlink and connection features
- 📱 Seamless cross-device syncing
- 🎨 Clean, intuitive, visually appealing interface

**What reviewers complain about**

- 🐛 Mobile app freezes and crashes frequently
- 📱 Inconsistent functionality across devices
- ⚠️ iPad split-screen not supported
- 🔤 Text editing experience buggy on iOS
- ⏱️ Slow performance with large documents

**Reported bugs**

- App freezes on splash screen (iPhone 7, iOS 15)
- Login and password reset failures
- Tagging on iPad causes app lockup
- Toggle not clickable with Magic Keyboard on iPad
- Task checkbox not working with Magic Keyboard

**Requested features**

- iPad app support
- Create custom object types on mobile
- Turn Into function on mobile devices
- System-level notifications for tasks and due dates
- Footnotes support


### Airia Chat

[App page](https://appshunter.io/ios/app/airia-chat/id6670690726)

This app streamlines workflows with AI-powered chat and advanced document management. Organize, search, and retrieve documents with intelligent tagging, and engage in dynamic conversations with an AI that understands context. It ensures data security with strict privacy controls and offers cross-platform synchronization.

**Highlights:** AI-powered contextual chat, Advanced document organization, AI-enhanced document search, Secure and private data handling, Cross-platform synchronization, Streamlined workflow automation

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

**In-app purchases:** none


## Frequently asked questions

### Is Capacities free?

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

### Is Airia Chat free?

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

### Which has better reviews, Capacities or Airia Chat?

Airia Chat is rated higher. Capacities averages 4.3 out of 5 from 116 ratings, while Airia Chat averages 5.0 from 8 ratings.

### Do Capacities or Airia Chat have ads?

Neither Capacities nor Airia Chat shows ads.

### Which is updated more often, Capacities or Airia Chat?

Capacities ships an update weekly, and Airia Chat every 9 days. Most recently, Capacities was updated on October 30, 2026 and Airia Chat on October 16, 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.*