# KO MARK vs Cassette

The clearest difference is in-app purchases: KO MARK at none against Cassette's 5. KO MARK also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cassette sells 5 in-app purchases, starting at $1.99 per 7 days. KO MARK asks for nothing beyond the download.

KO MARK ships an update daily, Cassette every 2 days. The most recent releases landed on November 4, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | KO MARK | Cassette |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 days |
| Size | 75 MB | 66 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Neetu Shah](https://appshunter.io/developer/1793327916) | [REZA ABDOLI](https://appshunter.io/developer/6777673394) |

## What reviewers say

### KO MARK

[App page](https://appshunter.io/ios/app/ko-mark/id6741153521)

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

**In-app purchases:** none


### Cassette

[App page](https://appshunter.io/ios/app/cassette-ai-note-taker/id6812001404)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $1.99 | per 7 days |
| Premium Monthly | $5.99 | per month |
| Premium Annual (Student) | $24.99 | per year |
| Premium Annual | $49.99 | per year |
| Premium Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is KO MARK free?

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

### Is Cassette free?

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

### Do KO MARK or Cassette have ads?

Neither KO MARK nor Cassette shows ads.

### Which is updated more often, KO MARK or Cassette?

KO MARK ships an update daily, and Cassette every 2 days. Most recently, KO MARK was updated on November 4, 2026 and Cassette 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.*