# InkMark vs C.md

The clearest difference is price: C.md at Free against InkMark's $0.99. C.md also leads on ads (none vs shown) and update cadence (every 4 days vs every 9 days). InkMark's advantage is in-app purchases (none vs 1) and iOS requirement (15.5 vs 17.6). On device support there is nothing between them.

C.md is free to download; InkMark costs $0.99 up front. C.md sells 1 one-off in-app purchase. InkMark asks for nothing beyond the download.

InkMark ships an update every 9 days, C.md every 4 days. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | InkMark | C.md |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 273 MB | 173 MB |
| Requires iOS | **15.5** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [梓萱 田](https://appshunter.io/developer/1734538828) | [建东 高](https://appshunter.io/developer/1597492102) |

## What reviewers say

### InkMark

[App page](https://appshunter.io/ios/app/inkmark-markdown-ai-notes/id6740519458)

**Features:** macOS Compatibility

**In-app purchases:** none


### C.md

[App page](https://appshunter.io/ios/app/cmd-markdown-reader/id6810085356)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C.md Pro | $9.99 | one-time |


## Frequently asked questions

### Is InkMark free?

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

### Is C.md free?

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

### Do InkMark or C.md have ads?

InkMark shows ads; C.md does not.

### Which is updated more often, InkMark or C.md?

InkMark ships an update every 9 days, and C.md every 4 days. Most recently, InkMark was updated on October 5, 2026 and C.md on October 8, 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.*