# markru vs Knowto

The clearest difference is in-app purchases: markru at none against Knowto's 2. Knowto's advantage is iOS requirement (17.0 vs 27.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Knowto sells 2 in-app purchases, starting at $0.99 per month. markru asks for nothing beyond the download.

markru ships an update weekly, Knowto every 10 days. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | markru | Knowto |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowto-notes-and-voice-memos/id6798763650/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Freemium |
| Size | 9 MB | 8 MB |
| Requires iOS | 27.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kazunobu tsujino](https://appshunter.io/developer/1872814748) | [Lumik LLC](https://appshunter.io/developer/1860645804) |

## What reviewers say

### markru

[App page](https://appshunter.io/ios/app/markru-notes-bookshelf/id6766451940)

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

**In-app purchases:** none


### Knowto

[App page](https://appshunter.io/ios/app/knowto-notes-and-voice-memos/id6798763650)

Capture ideas instantly with a fast, local-first note-taking app. Organize thoughts naturally with threads, tags, and attachments. Access your notes offline with optional cloud sync.

**Highlights:** Always-ready composer, Build on thoughts with threads, Search and filter notes, Attach photos and resources, Local-first storage, Background sync across devices

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knowto Plus Monthly | $0.99 | per month |
| Knowto Plus Yearly | $9.99 | per year |


## Frequently asked questions

### Is markru free?

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

### Is Knowto free?

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

### Do markru or Knowto have ads?

Neither markru nor Knowto shows ads.

### Which is updated more often, markru or Knowto?

markru ships an update weekly, and Knowto every 10 days. Most recently, markru was updated on October 31, 2026 and Knowto on November 13, 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.*