# Keyword Highlighter vs Nokosu

The clearest difference is price: Nokosu at Free against Keyword Highlighter's $2.99. Nokosu also leads on update cadence (weekly vs monthly). Keyword Highlighter's advantage is in-app purchases (none vs 1) and iOS requirement (17.6 vs 26.0). On ads and device support there is nothing between them.

Nokosu is free to download; Keyword Highlighter costs $2.99 up front. Nokosu sells 1 in-app purchase, starting at $2.99 per month. Keyword Highlighter asks for nothing beyond the download.

Keyword Highlighter ships an update monthly, Nokosu weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Keyword Highlighter | Nokosu |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | — | 87.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Freemium |
| Size | 2 MB | 29 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [家贺 万](https://appshunter.io/developer/1820076368) | [Yuto Sasaki](https://appshunter.io/developer/1509383971) |

## What reviewers say

### Keyword Highlighter

[App page](https://appshunter.io/ios/app/keyword-highlighter/id6755597747)

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


### Nokosu

[App page](https://appshunter.io/ios/app/nokosu-folder-notes/id6771652312)

Capture fleeting thoughts and inspirations on a clean, clutter-free interface. Organize notes effortlessly by stacking them into folders or using drag-and-drop. Unlock advanced features like favorites, nested folders, and custom themes with an optional Pro subscription.

**Highlights:** Fast idea capture, Stacking for automatic folder creation, Drag & drop organization, Customizable themes (Pro), Favorites and nested folders (Pro), iCloud sync (Pro)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nokosu Pro | $2.99 | per month |


## Frequently asked questions

### Is Keyword Highlighter free?

Keyword Highlighter costs $2.99, with no in-app purchases.

### Is Nokosu free?

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

### Do Keyword Highlighter or Nokosu have ads?

Neither Keyword Highlighter nor Nokosu shows ads.

### Which is updated more often, Keyword Highlighter or Nokosu?

Keyword Highlighter ships an update monthly, and Nokosu weekly. Most recently, Keyword Highlighter was updated on October 25, 2026 and Nokosu on October 24, 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.*