# Caliu vs Koku

The clearest difference is in-app purchases: Koku at none against Caliu's 2. Koku also leads on update cadence (every 3 days vs weekly). Caliu's advantage is device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Caliu sells 2 in-app purchases, starting at $1.99 per month. Koku asks for nothing beyond the download.

Caliu ships an update weekly, Koku every 3 days. The most recent releases landed on September 30, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Caliu | Koku |
| --- | --- | --- |
| Price | Free | 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free | — |
| Size | 210 MB | 4 MB |
| Requires iOS | **26.0** | 26.4 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Marc Torrelles](https://appshunter.io/developer/1712257538) | [Rodolfo Alberto Lopez Terriquez](https://appshunter.io/developer/1896502707) |

## What reviewers say

### 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 |


### Koku

[App page](https://appshunter.io/ios/app/koku-focus-timer/id6767715863)

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

**In-app purchases:** none


## Frequently asked questions

### Is Caliu free?

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

### Is Koku free?

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

### Do Caliu or Koku have ads?

Neither Caliu nor Koku shows ads.

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

Caliu ships an update weekly, and Koku every 3 days. Most recently, Caliu was updated on September 30, 2026 and Koku on September 25, 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.*