Comparison

KnowTree vs Abox Mark · Micro Journal

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

Head to head
About

KnowTree

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

Abox Mark · Micro Journal

Features
Read full description

Abox Mark is a private micro journal for daily moments, passing thoughts, and moods. No long-form writing and no streaks to maintain. Capture what just happened, a thought that crossed your mind, or how you feel right now. It takes only seconds, then a press and hold seals it as a mark of your own. Time remembers you. So your future self can meet who you are now. [Capture it in one line] Record a small part of your day, a passing thought, a mood, or any moment you don’t want to forget. Each entry is limited to 200 characters: enough for a short journal entry and quick enough to catch an idea before it disappears. Add a mood or place when you want more context. [Mood is optional] Calm, Happy, Inspired, Tired, Down, Missing, Looking forward. Choose one of seven states, or skip it entirely. It is not a psychology quiz—just a simple way to name the moment. [Hold to seal, keep it real] Press and hold the fingerprint button for about a second and a half. When the ring closes, the entry is sealed. Sealed marks can’t be edited. It is not about restriction; it means that when you return later, you meet the moment as it really was. [A timeline for your moments] Marks appear newest first. Use the month index to jump through time and revisit the days, thoughts, and memories you left behind. [Quiet reflection, no streak pressure] In “A Glance at Time,” see how many marks you have left and how long your recorded story has become. There is no streak to protect and no daily goal to complete. Open it whenever there is something worth keeping. [Private, on your device] • No account, no sign-in • No cloud sync, no social • Marks stay on this device only No sharing. No likes. No comments. Your micro journal belongs to you alone. Leave the moment. Seal it. Meet it again someday.

Screenshots

KnowTree4 screens
Abox Mark · Micro Journal4 screens

Verdict

The call

The clearest difference is in-app purchases: Abox Mark · Micro Journal at none against KnowTree's 1. Abox Mark · Micro Journal also leads on ads (none vs shown). KnowTree's advantage is update cadence (every 9 days vs every 3 weeks). On price, device support and iOS requirement 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. Abox Mark · Micro Journal asks for nothing beyond the download.

UpkeepUpdate frequency

KnowTree ships an update every 9 days, Abox Mark · Micro Journal every 3 weeks. Both last shipped on October 10, 2026.

Scorecard3 real differences · 3 level
KnowTree versus Abox Mark · Micro Journal: the parameters behind the verdict, then further details
ParameterKnowTreeAbox Mark · Micro Journal
PriceFreeFree
Update frequencyEvery 9 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.114.0 — better
Further details — not scored
Size51 MB25 MB
Age rating4+4+
DeveloperUkon RyoheiGuangwei Yu

In-app purchases

1 purchases

KnowTree

One-time1
  • KnowTree Premium$4.99
None

Abox Mark · Micro Journal

No in-app purchases

Questions

Is KnowTree free?
KnowTree is free to download, with in-app purchases available.
Is Abox Mark · Micro Journal free?
Abox Mark · Micro Journal is free to download, with no in-app purchases.
Do KnowTree or Abox Mark · Micro Journal have ads?
KnowTree shows ads; Abox Mark · Micro Journal does not.
Which is updated more often, KnowTree or Abox Mark · Micro Journal?
KnowTree ships an update every 9 days, and Abox Mark · Micro Journal every 3 weeks. Most recently, KnowTree was updated on October 10, 2026 and Abox Mark · Micro Journal on October 10, 2026.

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