# SiYuan vs AfterTime (1bf0c9)

The clearest difference is in-app purchases: AfterTime (1bf0c9) at none against SiYuan's 2. AfterTime (1bf0c9) also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SiYuan sells 2 one-off in-app purchases. AfterTime (1bf0c9) asks for nothing beyond the download.

## The numbers

| Metric | SiYuan | AfterTime (1bf0c9) |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 440 MB | 38 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Yunnan Liandi Technology Co., Ltd.](https://appshunter.io/developer/1583226510) | [Warren Chung](https://appshunter.io/developer/1851135513) |

## 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 enhance thinking processes.

**Highlights:** Privacy-first design, Offline data storage, End-to-end encrypted sync, Block and outline fusion, Bidirectional linking

**Features:** Vision Pro support

**In-app purchases (2)**

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


### AfterTime (1bf0c9)

[App page](https://appshunter.io/ios/app/aftertime-1bf0c9/id6754960676)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SiYuan free?

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

### Is AfterTime (1bf0c9) free?

AfterTime (1bf0c9) is free to download, with no in-app purchases.

### Do SiYuan or AfterTime (1bf0c9) have ads?

Neither SiYuan nor AfterTime (1bf0c9) shows ads.

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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.*