Comparison

KnowTree vs Clairo

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

Head to head
About

KnowTree

Organize your thoughts and information hierarchically with parent-child relationships. Supports Markdown, images, and code blocks for rich note-taking. Offers flexible workflows and powerful search capabilities.

Highlights
  • Hierarchical note organization
  • Markdown support
  • Flexible workflow (top-down/bottom-up)
  • Rich content (images, links, code)
  • Search across all nodes
  • Backup and restore functionality
  • Multiple tree management (premium)
Features
Read full description

◆ Organize notes in a "hierarchy" — and everything becomes clearer With most note-taking apps, as information piles up, it becomes hard to see how things are connected. "KnowTree" organizes your notes hierarchically with parent-child relationships. Group related information together so you can always find it again. --- ◆ Key Features [Tree Structure] Create nodes with parent-child relationships. Organize like "Main Topic → Subtopic → Details." No limit on how deep you can go. [Flexible Workflow] Start from the big picture (top-down), or jot down small notes and group them later (bottom-up) — both approaches work great. [Rich Content] Supports Markdown, images, links, and code blocks. Create notes that are clear and easy to read. --- ◆ Great For • Systematically organizing what you've learned • Structuring reading notes to match a book's outline • Managing project information in a hierarchy • Organizing your thoughts before writing • Connecting scattered notes into a coherent structure --- ◆ Features [Basic] • Create, edit, and delete nodes • Organize nodes with parent-child relationships • Markdown support • Search across all nodes • Trash (recover accidentally deleted notes) [Data Management] • Create and restore backups • Import data [Premium] • Create multiple trees • Ad-free experience • Premium color themes • Add images within note content • Export nodes • Home screen widget *Available with a Premium subscription (monthly) --- ◆ About Premium Plan Unlock all features with a monthly subscription. • Remove ads for a distraction-free experience • Access more color themes • Manage multiple trees for different purposes • Add images directly to your notes • Export in Markdown format • Quick access from your home screen You can cancel your subscription at any time. --- EULA (Apple Standard License Agreement) This app is subject to the Apple Media Services Standard End User License Agreement (Standard EULA). Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use Use of this app is subject to the following terms: KnowTree Terms of Use: https://uconpa.com/chishikinoki/terms/ Privacy Policy For information on how we handle user data: KnowTree Privacy Policy: https://uconpa.com/chishikinoki/privacypolicy/

About

Clairo

Features
Read full description

"I want to switch careers." "Make a camping packing list." Whatever you want to do or prepare for -- just tell the AI, and it's all organized. Clairo is an app that creates goal achievement plans and checklists automatically through AI conversation. -- Just talk, plans and lists are done AI asks a few questions to understand your situation, then generates a personalized task list. "I want to become fluent in English" -> Learning plan created. "Make a camping packing list" -> Checklist ready. -- See what to do at a glance Generated tasks are organized with due dates, priorities, and categories. Today's tasks are automatically displayed on your home screen. -- Modify anytime with AI Just tell the AI what you want to change. It suggests additions, modifications, and deletions while keeping your existing tasks intact. -- Use it for anything - Career change roadmap - Language learning plan - Camping & travel packing lists - Moving checklists - Study plans for certifications - Side hustle startup steps -- Key Features - AI-powered plan & list generation - Task management (check, due dates, priorities, categories, sort) - AI-powered plan revision (diff merge) - Today's tasks across all plans - Reminders & notifications - Home screen widget -- Pricing Includes 14-day free trial - Monthly: $4.99/mo - Yearly: $39.99/yr (save 34%) Subscriptions are charged to your Apple ID account. Auto-renewal occurs unless cancelled at least 24 hours before the current period ends. Privacy Policy: https://clairo-one.vercel.app/privacy-policy Terms of Use: https://clairo-one.vercel.app/terms

Screenshots

KnowTree4 screens
Clairo4 screens

Verdict

The call

The clearest difference is ads: Clairo at none against KnowTree's shown. Clairo also leads on update cadence (every 2 days vs every 9 days). KnowTree's advantage is iOS requirement (15.1 vs 17.0). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KnowTree sells 1 one-off in-app purchase and Clairo sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

KnowTree ships an update every 9 days, Clairo every 2 days. Both last shipped on October 31, 2026.

Scorecard3 real differences · 6 level
KnowTree versus Clairo: the parameters behind the verdict, then further details
ParameterKnowTreeClairo
PriceFreeFree
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 9 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size51 MB15 MB
Age rating4+4+
DeveloperUkon RyoheiYajima Shunnosuke

In-app purchases

1 purchases

KnowTree

One-time1
  • KnowTree Premium$4.99
2 purchases

Clairo

Subscriptions2
  • 月額プラン14 Days trial$2.991 Month
  • 年額プラン14 Days trial$22.991 Year

Questions

Is KnowTree free?
KnowTree is free to download, with in-app purchases available.
Is Clairo free?
Clairo is free to download, with in-app purchases available.
Do KnowTree or Clairo have ads?
KnowTree shows ads; Clairo does not.
Which is updated more often, KnowTree or Clairo?
KnowTree ships an update every 9 days, and Clairo every 2 days. Most recently, KnowTree was updated on October 31, 2026 and Clairo on October 31, 2026.

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