# KnowTree vs Abox Mark · Micro Journal

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.

Both are free to download. KnowTree sells 1 one-off in-app purchase. Abox Mark · Micro Journal asks for nothing beyond the download.

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

## The numbers

| Metric | KnowTree | Abox Mark · Micro Journal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 51 MB | 25 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ukon Ryohei](https://appshunter.io/developer/1834526187) | [Guangwei Yu](https://appshunter.io/developer/1873973872) |

## What reviewers say

### KnowTree

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

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

**In-app purchases (1)**

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


### Abox Mark · Micro Journal

[App page](https://appshunter.io/ios/app/abox-mark-micro-journal/id6799676966)

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

**In-app purchases:** none


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