# HSNote vs KnowTree

The clearest difference is in-app purchases: HSNote at none against KnowTree's 1. HSNote also leads on ads (none vs shown) and update cadence (every 3 days vs every 9 days). On price and device support there is nothing between them.

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

HSNote ships an update every 3 days, KnowTree every 9 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HSNote | KnowTree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/knowtree/id6757321205/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 51 MB |
| Requires iOS | **13.2** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Endo](https://appshunter.io/developer/1256506814) | [Ukon Ryohei](https://appshunter.io/developer/1834526187) |

## What reviewers say

### HSNote

[App page](https://appshunter.io/ios/app/hsnote-hierarchical-storage/id1505037881)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### KnowTree

[App page](https://appshunter.io/ios/app/knowtree/id6757321205)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowTree Premium | $4.99 | one-time |


## Frequently asked questions

### Is HSNote free?

HSNote is free to download, with no in-app purchases.

### Is KnowTree free?

KnowTree is free to download, with in-app purchases available.

### Do HSNote or KnowTree have ads?

KnowTree shows ads; HSNote does not.

### Which is updated more often, HSNote or KnowTree?

HSNote ships an update every 3 days, and KnowTree every 9 days. Most recently, HSNote was updated on November 7, 2026 and KnowTree on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*