Tree Notebook vs Simark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Simark
A powerful note-taking application that leverages Markdown for efficient writing and organization. It offers cloud synchronization, distraction-free editing, and internal note linking to enhance productivity across devices.
- Cloud Sync across devices
- Distraction-free writing interface
- Advanced Markdown formatting
- Internal note linking
- Share notes on the web
- Auto dark theme
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> Simark is the ultimate note-taking app for anyone who loves the simplicity and efficiency of Markdown. Designed for professionals, students, and writers, Simark offers a clean and beautiful interface that’s easy to use and perfect for productivity. - Crafted by human hands. Zero AI-generated code. - Cloud Sync: Sync your notes seamlessly across devices and keep your data secure in the cloud. - Version history: safely restore note content from previous versions. - Distraction-Free Writing: Focus on what matters with a simple, modern UI. - Markdown Power: Organize your notes with advanced Markdown formatting. - Note Linking: Create seamless connections between your notes with powerful internal links. Easily reference and navigate related ideas, making your note-taking process more efficient and interconnected. - Multi-Platform Support: Currently available on macOS and iOS, iPadOS support coming soon. - Auto Dark Theme: Automatically switch between light and dark mode based on your environment. - Share on the Web: Publish and share your notes effortlessly with just a few clicks. Whether you’re drafting your next blog post, organizing your study notes, or writing a novel, Simark gives you everything you need to write with ease. ### Other Website: https://www.simark.link Feedback email: bornbefreesolo@hotmail.com Apple’s Standard License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Simark at 5.0 against Tree Notebook's 4.4. Simark also leads on update cadence (every 2 days vs every 25 months). Tree Notebook's advantage is in-app purchases (none vs 2) and ratings volume (5 vs 1). On price, ads, 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
Both are free to download. Simark sells 2 in-app purchases, starting at $1.19 per month. Tree Notebook asks for nothing beyond the download.
Simark holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Tree Notebook has 5 ratings behind it against 1, so its average is the more settled of the two.
Tree Notebook ships an update every 25 months, Simark every 2 days. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | Tree Notebook | Simark |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 83.3% of reviews |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 25 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Mac |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 12 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Lena Pankratova | 冠为 周 |
Customer experience
Tree Notebook
Simark
In-app purchases
Tree Notebook
No in-app purchases
Simark
- Simark Sync14 Days trial$1.191 Month
- Simark Sync14 Days trial$9.991 Year









