# SiYuan vs BlurHash

The clearest difference is update cadence: SiYuan at weekly against BlurHash's every 14 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SiYuan sells 2 one-off in-app purchases and BlurHash sells 5 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SiYuan ships an update weekly, BlurHash every 14 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | SiYuan | BlurHash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (30 ratings)](https://appshunter.io/ios/app/siyuan/id1583226508/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 14 months |
| Monetization | Free with in-app purchases | — |
| Size | 434 MB | 17 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Yunnan Liandi Technology Co., Ltd.](https://appshunter.io/developer/1583226510) | [Farouk Nasser](https://appshunter.io/developer/1478256466) |

## What reviewers say

### 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 |


### BlurHash

[App page](https://appshunter.io/ios/app/blurhash/id6738354720)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $0.99 | per 7 days |
| Premium Monthly | $2.99 | per month |
| Weekly Pro Access | $3.99 | per 7 days |
| Premium Yearly | $9.99 | per year |
| Monthly Pro Access | $9.99 | per month |


## Frequently asked questions

### Is SiYuan free?

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

### Is BlurHash free?

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

### Do SiYuan or BlurHash have ads?

Neither SiYuan nor BlurHash shows ads.

### Which is updated more often, SiYuan or BlurHash?

SiYuan ships an update weekly, and BlurHash every 14 months. Most recently, SiYuan was updated on October 24, 2026 and BlurHash 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.*