Comparison

TASS kun vs KnowTree

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

Head to head
About

TASS kun

Features
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TASS kun は、シンプルかつ多機能なタスク管理アプリです。 洗練された見た目を維持しながら、「欲しいけどなかった機能」を備えています。 主な機能: ・タスクセットの保存と読み込み ・タブ管理機能 ・完了済みタスクの一括操作 毎日のToDo管理を、効率的に。 仕事や勉強、日常のタスク管理に最適です。

About

KnowTree

Features
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◆ 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/

Screenshots

TASS kun2 screens
KnowTree4 screens

Verdict

The call

The clearest difference is in-app purchases: TASS kun at none against KnowTree's 1. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KnowTree sells 1 one-off in-app purchase. TASS kun asks for nothing beyond the download.

UpkeepUpdate frequency

TASS kun ships an update every 11 days, KnowTree every 9 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 7 level
TASS kun versus KnowTree: the parameters behind the verdict, then further details
ParameterTASS kunKnowTree
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 11 daysEvery 9 days — better
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size5 MB51 MB
Age rating4+4+
Developerkoyo kuzeUkon Ryohei

In-app purchases

None

TASS kun

No in-app purchases

1 purchases

KnowTree

One-time1
  • KnowTree Premium$4.99

Questions

Is TASS kun free?
TASS kun is free to download, with no in-app purchases.
Is KnowTree free?
KnowTree is free to download, with in-app purchases available.
Do TASS kun or KnowTree have ads?
Both TASS kun and KnowTree show ads.
Which is updated more often, TASS kun or KnowTree?
TASS kun ships an update every 11 days, and KnowTree every 9 days. Most recently, TASS kun was updated on October 25, 2026 and KnowTree on October 24, 2026.

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