# ArkNote vs 知己

The clearest difference is in-app purchases: 知己 at none against ArkNote's 3. ArkNote's advantage is device support (3 vs 1) and iOS requirement (17.0 vs 26.0). On price, update cadence and ads there is nothing between them.

Both are free to download. ArkNote sells 3 in-app purchases, starting at $3.99 per month. 知己 asks for nothing beyond the download.

ArkNote ships an update every 4 days, 知己 every 3 days. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ArkNote | 知己 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/arknote-adhd-friendly-notes/id6800532358/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 8 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [LexyTech Ltd.](https://appshunter.io/developer/1643712954) | [伟烈 熊](https://appshunter.io/developer/6792607821) |

## What reviewers say

### ArkNote

[App page](https://appshunter.io/ios/app/arknote-adhd-friendly-notes/id6800532358)

Organize your daily life with a unified journaling and task management system. Capture thoughts, to-dos, and reflections in a chronological timeline, with features like recurring tasks and customizable templates to streamline your record-keeping.

**Highlights:** Daily chronological timeline, Integrated notes and to-dos, Recurring and auto-carrying tasks, Customizable templates, Nested tags for organization, System Share Extension for quick capture, iCloud sync and JSON backup

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $6.99 | per year |
| PRO | $14.99 | one-time |


### 知己

[App page](https://appshunter.io/ios/app/ai/id6816163811)

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

**In-app purchases:** none


## Frequently asked questions

### Is ArkNote free?

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

### Is 知己 free?

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

### Do ArkNote or 知己 have ads?

Neither ArkNote nor 知己 shows ads.

### Which is updated more often, ArkNote or 知己?

ArkNote ships an update every 4 days, and 知己 every 3 days. Most recently, ArkNote was updated on October 13, 2026 and 知己 on October 19, 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.*