Comparison

SiYuan vs KNOWLY AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SiYuan

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
Read full description

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.

About

KNOWLY AI

This AI-powered tool helps you quickly understand and simplify complex information. It extracts key details from documents, articles, and conversations, providing clear explanations and insights for learning and productivity.

Highlights
  • Text scanning and smart extraction
  • Clear summaries of content
  • Easy-to-understand explanations
  • Document comparison tools
  • Fast insights for learning and organizing
Features
Read full description

Knowly AI helps you scan, simplify, and understand information faster with AI. Built for everyday learning and productivity, Knowly turns complex content into clear insights you can actually use. From articles and notes to conversations and documents, Knowly helps you pull out what matters most.App offers auto-renewable subscriptions for premium access. Features include: • Text scanning and smart extraction • Clear summaries of articles and written content • Easy-to-understand explanations of difficult topics • Comparison tools for documents, images, and more • Fast insights for learning, reviewing, and organizing information Knowly is perfect for students, professionals, creators, and anyone who wants to save time and understand more. When information feels overwhelming, Knowly helps make it clear. Knowly AI offers auto-renewable subscriptions for premium access. Available subscriptions may include monthly and annual plans. Subscription length and pricing are shown clearly in the app before purchase. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. • Premium Monthly — $4.99 per month • Premium Annual — $39.99 per year https://scan-know-analyze.lovable.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ These subscriptions unlock premium features within the app. Users can manage or cancel their subscriptions in their Apple ID account settings after purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current billing period. Features include: • Text scanning and smart extraction • Clear summaries of articles and written content • Easy-to-understand explanations of difficult topics • Comparison tools for documents, images, and more • Fast insights for learning, reviewing, and organizing information Knowly is perfect for students, professionals, creators, and anyone who wants to save time and understand more.When information feels overwhelming, Knowly helps make it clear.

Screenshots

SiYuan4 screens
KNOWLY AI4 screens

Verdict

The call

The clearest difference is rating: KNOWLY AI at 5.0 against SiYuan's 3.9. KNOWLY AI also leads on review sentiment (100% vs 67%) and update cadence (every 3 days vs every 8 days). SiYuan's advantage is ratings volume (30 vs 1). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SiYuan sells 2 one-off in-app purchases and KNOWLY AI sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

KNOWLY AI holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: SiYuan has 30 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of SiYuan's written reviews are positive against 100% of KNOWLY AI's.

UpkeepUpdate frequency

SiYuan ships an update every 8 days, KNOWLY AI every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
SiYuan versus KNOWLY AI: the parameters behind the verdict, then further details
ParameterSiYuanKNOWLY AI
PriceFreeFree
Rating3.9 (30 ratings)5.0 (1 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings30 — better1
Update frequencyEvery 8 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size440 MB18 MB
Age rating17+17+
DeveloperYunnan Liandi Technology Co., Ltd.TEMNE ADAH HARDAWAY

Customer experience

SiYuan

All ratings30 ratings
Positive73.3%
Neutral3.3%
Negative23.3%
Written reviews21 reviews
Positive66.7%
Neutral14.3%
Negative19.0%

KNOWLY AI

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

SiYuan

One-time2
  • PRO Features$79.99
  • Subscription$188.99
2 purchases

KNOWLY AI

Subscriptions2
  • Premium monthly3 Days trial$4.991 Month
  • Premium annual3 Days trial$39.991 Year

Questions

Is SiYuan free?
SiYuan is free to download, with in-app purchases available.
Is KNOWLY AI free?
KNOWLY AI is free to download, with in-app purchases available.
Which has better reviews, SiYuan or KNOWLY AI?
KNOWLY AI is rated higher. SiYuan averages 3.9 out of 5 from 30 ratings, while KNOWLY AI averages 5.0 from 1 ratings.
Do SiYuan or KNOWLY AI have ads?
Neither SiYuan nor KNOWLY AI shows ads.
Which is updated more often, SiYuan or KNOWLY AI?
SiYuan ships an update every 8 days, and KNOWLY AI every 3 days. Most recently, SiYuan was updated on November 3, 2026 and KNOWLY AI on October 31, 2026.

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