# Arduino Bluetooth Kit vs SoloMD

The clearest difference is price: SoloMD at Free against Arduino Bluetooth Kit's $4.99. SoloMD also leads on update cadence (every 3 days vs every 10 months). Arduino Bluetooth Kit's advantage is rating (2.4 vs 1.0) and in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

SoloMD is free to download; Arduino Bluetooth Kit costs $4.99 up front. SoloMD sells 3 one-off in-app purchases. Arduino Bluetooth Kit asks for nothing beyond the download.

Arduino Bluetooth Kit holds the better App Store score, 2.4 against 1.0. That said, the two scores are not equally well evidenced: Arduino Bluetooth Kit has 7 ratings behind it against 1, so its average is the more settled of the two.

Arduino Bluetooth Kit ships an update every 10 months, SoloMD every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Arduino Bluetooth Kit | SoloMD |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[2.4 (7 ratings)](https://appshunter.io/ios/app/arduino-bluetooth-kit/id1172121838/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/solomd/id6762498874/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 days** |
| Monetization | Paid | **Free** |
| Best chart rank | **#199** | — |
| Size | 26 MB | 23 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Rabi Alhetawi](https://appshunter.io/developer/1079396850) | [向东 李](https://appshunter.io/developer/1885418034) |

## What reviewers say

### Arduino Bluetooth Kit

[App page](https://appshunter.io/ios/app/arduino-bluetooth-kit/id1172121838)

**Currently charting:** #199 Top Paid · Productivity (US App Store)

Control and monitor Arduino boards via Bluetooth. Read and write digital and analog pins, change pin modes, and visualize data with charts and gauges. Ideal for smart home, automation, and educational projects.

**Highlights:** Read/write digital pins, Read/write PWM pins, Read analog pins, Monitor analog data via charts/gauges, Change pin modes, Automatic Arduino connection, Rename pin labels

**Features:** macOS Compatibility

**In-app purchases:** none


### SoloMD

[App page](https://appshunter.io/ios/app/solomd/id6762498874)

A distraction-free Markdown editor for iPad, focusing on writing with live preview, rich syntax, and export options. Your notes are stored locally as plain text files.

**Highlights:** Distraction-free writing environment, Live Markdown preview, KaTeX math and Mermaid diagram support, Multiple export formats (HTML, PDF, DOCX), File tree and outline view, Focus and typewriter modes, Split-view and multitasking support

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy a Coffee | $0.99 | one-time |
| Buy a Lunch | $2.99 | one-time |
| Generous Support | $9.99 | one-time |


## Frequently asked questions

### Is Arduino Bluetooth Kit free?

Arduino Bluetooth Kit costs $4.99, with no in-app purchases.

### Is SoloMD free?

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

### Which has better reviews, Arduino Bluetooth Kit or SoloMD?

Arduino Bluetooth Kit is rated higher. Arduino Bluetooth Kit averages 2.4 out of 5 from 7 ratings, while SoloMD averages 1.0 from 1 ratings.

### Do Arduino Bluetooth Kit or SoloMD have ads?

Neither Arduino Bluetooth Kit nor SoloMD shows ads.

### Which is updated more often, Arduino Bluetooth Kit or SoloMD?

Arduino Bluetooth Kit ships an update every 10 months, and SoloMD every 3 days. Most recently, Arduino Bluetooth Kit was updated on October 24, 2026 and SoloMD on October 24, 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.*