Knowledge from OnlineObjects vs Tree Notebook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Knowledge from OnlineObjects
Organize your thoughts and information with a personal knowledge base. Save web pages, highlight text, and sync across devices. Create questions and link answers to build a comprehensive understanding of any topic.
- Save web pages
- Highlight text
- Ad-free viewing
- Sync between devices
- Create questions and answers
- Pose hypotheses
- Share extension
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A personal knowledge base · Save web pages · Highlight text on pages · View without ads or navigation · Sync between devices · Create questions and link answers · Pose hypotheses with for/against · A share-extension to add pages Other platforms - free · Mac app called "OnlineObjects" · Web app on https://knowledge.onlineobjects.com Please note: · Information is stored in the cloud · You will be asked to create a free account in order to use the app · We do not share your info with others
Tree Notebook
Organize personal information with a hierarchical notes manager. Structure data into a tree-like hierarchy of folders and notes, with options for public and encrypted private sections. Features include powerful search, customizable item appearance, and event reminders.
- Tree-like hierarchical organization
- Public and encrypted private data sections
- Attachments (images, files)
- Multiple data views (tree, list, favorites, history)
- Powerful search capabilities
- Customizable item appearance
- Event reminders and calendar
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Tree Notebook is a hierarchical notes manager designed for keeping personal information. Tree Notebook runs on an iOS device (iPhone or iPad). Besides, there is a counterpart for OS Windows which can be synchronized with up to three iOS devices via a local Wi-Fi network. No access to Internet is needed for synchronizing. The data in Tree Notebook is divided in two parts: the public part accessible without password and the encrypted private part which requires password for opening. The data in every part is arranged as a tree-like multilevel hierarchy of folders and notes. Any folder can include notes and other folders, and so fourth. Any item (a note or a folder) can include text of any size. The items can keep attachments like images or other files. The app can represent data in several ways: as a tree, as a list of items (folders and notes) on the current level, as a list of manually selected items ("Favorites"), or the items visited recently ("History"). The contents of an individual item can be viewed or edited. Tree Notebook includes powerful search facilities: simplified or conditional global search, local search inside an item text. The items can be sorted by several criteria: alphabetically, by creation or modification time, and in manually defined order. The item titles can be attributed using a variety of font types, colored flags, graphic icons. Any item can have an Event attribute and serve as an alarm clock or reminder. A calendar feature is available to help managing events. The app is free to use both on iOS devices and desktop PC.
Screenshots
Verdict
The clearest difference is rating: Knowledge from OnlineObjects at 5.0 against Tree Notebook's 4.4. Knowledge from OnlineObjects also leads on update cadence (every 4 months vs every 25 months) and iOS requirement (13.0 vs 15.6). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Knowledge from OnlineObjects holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 2 and 5 respectively.
Knowledge from OnlineObjects ships an update every 4 months, Tree Notebook every 25 months. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.
| Parameter | Knowledge from OnlineObjects | Tree Notebook |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.4 (5 ratings) |
| Number of ratings | 2 | 5 — better |
| Update frequency | Every 4 months — better | Every 25 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 12 MB |
| Age rating | 17+ | 4+ |
| Developer | Jonas Munk | Lena Pankratova |
Customer experience
Knowledge from OnlineObjects
Tree Notebook
In-app purchases
Knowledge from OnlineObjects
No in-app purchases
Tree Notebook
No in-app purchases
Questions
Is Knowledge from OnlineObjects free?
Is Tree Notebook free?
Which has better reviews, Knowledge from OnlineObjects or Tree Notebook?
Do Knowledge from OnlineObjects or Tree Notebook have ads?
Which is updated more often, Knowledge from OnlineObjects or Tree Notebook?
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