# Cautionary vs Caliu

The clearest difference is price: Caliu at Free against Cautionary's $0.99. Cautionary's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs weekly). On ads and device support there is nothing between them.

Caliu is free to download; Cautionary costs $0.99 up front. Caliu sells 2 in-app purchases, starting at $1.99 per month. Cautionary asks for nothing beyond the download.

Cautionary ships an update every 3 days, Caliu weekly. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Cautionary | Caliu |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/caliu-markdown-notes/id6761850487/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | — | Free |
| Size | 11 MB | 210 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [辉章 何](https://appshunter.io/developer/1687027088) | [Marc Torrelles](https://appshunter.io/developer/1712257538) |

## What reviewers say

### Cautionary

[App page](https://appshunter.io/ios/app/cautionary/id6451156147)

**Features:** Vision Pro support

**In-app purchases:** none


### Caliu

[App page](https://appshunter.io/ios/app/caliu-markdown-notes/id6761850487)

A minimalist markdown notes app designed for writers, offering a distraction-free writing experience with features like nested tags, reminders, and cross-device syncing. It allows for easy export and integration with external tools.

**Highlights:** Markdown writing with live formatting, Nested and colored tags for organization, Cross-device sync across iPhone, iPad, and Mac, Reminders for notes, Export to various formats (Markdown, ePub, RTF), REST API and MCP server for integration, Customizable themes

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caliu Pro - Monthly | $1.99 | per month |
| Caliu Pro - Yearly | $17.99 | per year |


## Frequently asked questions

### Is Cautionary free?

Cautionary costs $0.99, with no in-app purchases.

### Is Caliu free?

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

### Do Cautionary or Caliu have ads?

Neither Cautionary nor Caliu shows ads.

### Which is updated more often, Cautionary or Caliu?

Cautionary ships an update every 3 days, and Caliu weekly. Most recently, Cautionary was updated on October 8, 2026 and Caliu on September 30, 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.*