# One Markdown vs SiYuan

The clearest difference is rating: One Markdown at 4.6 against SiYuan's 4.0. One Markdown also leads on review sentiment (82% vs 70%) and ratings volume (141 vs 29). SiYuan's advantage is update cadence (weekly vs monthly). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. One Markdown sells 3 in-app purchases, starting at $3.99 per year and SiYuan sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

One Markdown holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 141 and 29 respectively. Written reviews point the same way: 82% of One Markdown's written reviews are positive against 70% of SiYuan's.

One Markdown ships an update monthly, SiYuan weekly. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | One Markdown | SiYuan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (141 ratings)](https://appshunter.io/ios/app/one-markdown/id1507139439/reviews)** | [4.0 (29 ratings)](https://appshunter.io/ios/app/siyuan/id1583226508/reviews) |
| Number of ratings | **141** | 29 |
| Positive reviews | **81.9% of reviews** | 70.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 50 MB | 419 MB |
| Requires iOS | **14.5** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [禄海 区](https://appshunter.io/developer/954188947) | [Yunnan Liandi Technology Co., Ltd.](https://appshunter.io/developer/1583226510) |

## What reviewers say

### One Markdown

[App page](https://appshunter.io/ios/app/one-markdown/id1507139439)

A fast and simple editor for plain text, Markdown, and Textbundle formats. It offers full Markdown display, image previews, math formula rendering, and extensive customization options for themes and fonts. Includes tools for syntax input, table generation, and document outlining.

**Highlights:** Supports CommonMark and GitHub Flavored Markdown, Full Markdown document display, Image and math formula previews, Customizable themes and fonts, Markdown syntax input menu and keyboard, Outline and word count view, Editor & Preview mode

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Markdown Yearly Subscribe | $3.99 | per year |
| One Markdown for Mac | $9.99 | one-time |
| One Markdown for  iPhone/iPad | $9.99 | one-time |


### SiYuan

[App page](https://appshunter.io/ios/app/siyuan/id1583226508)

A privacy-focused personal knowledge management system that allows offline use and encrypted data synchronization. It combines blocks, outlines, and bidirectional links to help users organize and refine their thoughts.

**Highlights:** Privacy-first design, Offline data storage, End-to-end encrypted sync, Block-based organization, Outline structuring, Bidirectional linking

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Features | $79.99 | one-time |
| Subscription | $188.99 | one-time |


## Frequently asked questions

### Is One Markdown free?

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

### Is SiYuan free?

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

### Which has better reviews, One Markdown or SiYuan?

One Markdown is rated higher. One Markdown averages 4.6 out of 5 from 141 ratings, while SiYuan averages 4.0 from 29 ratings.

### Do One Markdown or SiYuan have ads?

Neither One Markdown nor SiYuan shows ads.

### Which is updated more often, One Markdown or SiYuan?

One Markdown ships an update monthly, and SiYuan weekly. Most recently, One Markdown was updated on October 5, 2026 and SiYuan on October 15, 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.*