# Cautionary vs ArkNote

The clearest difference is price: ArkNote at Free against Cautionary's $0.99. Cautionary's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

ArkNote is free to download; Cautionary costs $0.99 up front. ArkNote sells 3 in-app purchases, starting at $3.99 per month. Cautionary asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Cautionary | ArkNote |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Size | 11 MB | 10 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [辉章 何](https://appshunter.io/developer/1687027088) | [LexyTech Ltd.](https://appshunter.io/developer/1643712954) |

## What reviewers say

### Cautionary

[App page](https://appshunter.io/ios/app/cautionary/id6451156147)

**Features:** Vision Pro support

**In-app purchases:** none


### ArkNote

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

**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 |


## Frequently asked questions

### Is Cautionary free?

Cautionary costs $0.99, with no in-app purchases.

### Is ArkNote free?

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

### Do Cautionary or ArkNote have ads?

Neither Cautionary nor ArkNote shows ads.

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

Cautionary ships an update every 3 days, and ArkNote every 3 days. Most recently, Cautionary was updated on September 21, 2026 and ArkNote on September 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.*