# Knowto vs Vellum

Knowto and Vellum are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Knowto sells 2 in-app purchases, starting at $0.99 per month and Vellum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Knowto ships an update every 10 days, Vellum weekly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Knowto | Vellum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowto-instant-note-taking/id6798763650/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Freemium | — |
| Size | 5 MB | 44 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lumik LLC](https://appshunter.io/developer/1860645804) | [四扬 叶](https://appshunter.io/developer/6797699915) |

## What reviewers say

### Knowto

[App page](https://appshunter.io/ios/app/knowto-instant-note-taking/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 |


### Vellum

[App page](https://appshunter.io/ios/app/vellum-topic-notes-and-ideas/id6799964763)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vellum pro lifetime | $2.99 | one-time |


## Frequently asked questions

### Is Knowto free?

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

### Is Vellum free?

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

### Do Knowto or Vellum have ads?

Neither Knowto nor Vellum shows ads.

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

Knowto ships an update every 10 days, and Vellum weekly. Most recently, Knowto was updated on October 31, 2026 and Vellum on November 6, 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.*