# Chaos | Capture vs Nocturnum

The clearest difference is monetization model: Nocturnum at free against Chaos | Capture's free with in-app purchases. Chaos | Capture's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (15.1 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Chaos | Capture sells 3 in-app purchases, starting at $3.99 per 7 days and Nocturnum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Chaos | Capture against 5.0 for Nocturnum. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Chaos | Capture ships an update weekly, Nocturnum every 4 weeks. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Chaos | Capture | Nocturnum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/chaos-capture/id6757371300/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/nocturnum-markdown-notes/id6761089538/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 109 MB | 9 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Chaos Intelligence LLC](https://appshunter.io/developer/1800959472) | [Fishington Studios](https://appshunter.io/developer/344044425) |

## What reviewers say

### Chaos | Capture

[App page](https://appshunter.io/ios/app/chaos-capture/id6757371300)

Capture and organize your thoughts with AI assistance. This app uses intelligent agents to tag topics, categorize information, and connect ideas, helping you understand your thinking patterns. It resurfaces relevant past thoughts precisely when you need them.

**Highlights:** AI-powered thought capture, Automatic tagging and categorization, Intelligent idea connection, Resurfaces past thoughts, Understanding thinking patterns

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $3.99 | per 7 days |
| Monthly Plan | $12.99 | per month |
| Yearly Plan | $99.99 | per year |


### Nocturnum

[App page](https://appshunter.io/ios/app/nocturnum-markdown-notes/id6761089538)

Capture ideas quickly and organize them with Markdown formatting. This app provides a focused writing environment that remains fast and efficient as your note collection grows. Easily sort, search, and access your thoughts for seamless productivity.

**Highlights:** Quick idea capture, Markdown formatting, Workspace and notebook organization, Fast search functionality, JSON and Markdown export, Inbox for temporary notes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $4.99 | one-time |


## Frequently asked questions

### Is Chaos | Capture free?

Chaos | Capture is free to download, with in-app purchases available.

### Is Nocturnum free?

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

### Which has better reviews, Chaos | Capture or Nocturnum?

Chaos | Capture and Nocturnum are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Chaos | Capture or Nocturnum have ads?

Neither Chaos | Capture nor Nocturnum shows ads.

### Which is updated more often, Chaos | Capture or Nocturnum?

Chaos | Capture ships an update weekly, and Nocturnum every 4 weeks. Most recently, Chaos | Capture was updated on October 16, 2026 and Nocturnum on October 19, 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.*