# Caliu vs SA_agent

The clearest difference is update cadence: Caliu at weekly against SA_agent's every 3 weeks. SA_agent's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Caliu sells 3 in-app purchases, starting at $2.99 per month and SA_agent sells 4 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

Caliu ships an update weekly, SA_agent every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Caliu | SA_agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/caliu-markdown-notes/id6761850487/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 201 MB | 6 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, Mac, Apple Watch | **iPhone, iPad, iPod, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Marc Torrelles](https://appshunter.io/developer/1712257538) | [鹏帆 常](https://appshunter.io/developer/1895084625) |

## 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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caliu Pro - Monthly | $2.99 | per month |
| Caliu Pro - Yearly | $17.99 | per year |
| Caliu Pro Lifetime | $44.99 | one-time |


### SA_agent

[App page](https://appshunter.io/ios/app/sa-agent/id6777446364)

**Features:** Safari Extension

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SA_agent Annual | $4.99 | per year |
| SA Agent Credits | $0.99 | one-time |
| SA Agent Credits | $4.99 | one-time |
| SA Agent Credits | $19.99 | one-time |


## Frequently asked questions

### Is Caliu free?

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

### Is SA_agent free?

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

### Do Caliu or SA_agent have ads?

Neither Caliu nor SA_agent shows ads.

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

Caliu ships an update weekly, and SA_agent every 3 weeks. Most recently, Caliu was updated on October 25, 2026 and SA_agent on October 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.*