# SX vs C.md

The clearest difference is in-app purchases: SX at none against C.md's 1. SX also leads on iOS requirement (15.1 vs 17.6). C.md's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. C.md sells 1 one-off in-app purchase. SX asks for nothing beyond the download.

SX ships an update every 3 weeks, C.md every 4 days. The most recent releases landed on September 30, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | SX | C.md |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/sx-70r/id6450763416/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 34 MB | 173 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [永民 陆](https://appshunter.io/developer/1694852277) | [建东 高](https://appshunter.io/developer/1597492102) |

## What reviewers say

### SX

[App page](https://appshunter.io/ios/app/sx-70r/id6450763416)

This application revolutionizes Bluetooth device control with an intuitive interface and advanced features. Manage multiple devices simultaneously, customize controls, and enjoy secure, reliable connections for audio, smart home, and more.

**Highlights:** Intuitive user interface, Multi-device management, Customizable control panels, Audio equalizers, Device search, Connection history, Secure and reliable

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

**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 SX free?

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

### Is C.md free?

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

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

Neither SX nor C.md shows ads.

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

SX ships an update every 3 weeks, and C.md every 4 days. Most recently, SX was updated on September 30, 2026 and C.md on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*