SiYuan vs piley
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SiYuan
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.
- Privacy-first design
- Offline data storage
- End-to-end encrypted sync
- Block-based organization
- Outline structuring
- Bidirectional linking
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SiYuan is a privacy-first personal knowledge management system that supports complete offline use, as well as end-to-end encrypted data sync. Fuse blocks, outlines, and bidirectional links to refactor your thinking.
piley
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piley is a small to-do app that uses piles to manage your tasks. You can stack up tasks within a pile, create and manage your piles and also set reminders and recurring tasks.
Screenshots
Verdict
The clearest difference is in-app purchases: piley at none against SiYuan's 2. piley also leads on iOS requirement (15.3 vs 17.0). SiYuan's advantage is update cadence (weekly vs every 7 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SiYuan sells 2 one-off in-app purchases. piley asks for nothing beyond the download.
SiYuan ships an update weekly, piley every 7 months. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.
| Parameter | SiYuan | piley |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (29 ratings) — better | — |
| Positive reviews | 70.0% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Weekly — better | Every 7 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.3 — better |
| Further details — not scored | ||
| Size | 419 MB | 41 MB |
| Age rating | 17+ | 4+ |
| Developer | Yunnan Liandi Technology Co., Ltd. | Denis Koljada |
In-app purchases
SiYuan
- PRO Features$79.99
- Subscription$188.99
piley
No in-app purchases
