Arduino Bluetooth Kit vs SoloMD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arduino Bluetooth Kit
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.
- 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
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Features: - Read & write digital pins. - Read & write PWM pins. - Read analog pins. - Remember last status of the pins. - Monitor Analog via Charts, Gauge or Meter - Change the mode of the pin (Output, PWM, SERVO or Input). - Automatic connect to Arduino. - Rename the label of each pin. Applications: - Smart Home. - Automation. - Hoppy projects. - Schools & university projects. - Remote & Robots control. Check this youtube to see in real world: - https://youtu.be/EmQELmq86A4 Requirements: - Any of (UNO, MEGA, Leonardo, Nano, Pro) - Bluetooth BLE module such as( HM-10, TI, CC2541, Bluefruit BLE UART, Bluefruit BLE SPI, Feather 32u4 BLE, Redbear, Seeeduino). - Arduino Sketch(URL provided inside the app). Tested on: - iOS with (HM-10, TI, CC2541, Bluefruit LE UART or SPI, Feather 32u4 Bluefruit).
SoloMD
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.
- 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
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SoloMD is a lightweight, distraction-free Markdown editor for iPad. One file. One window. Just write. Built from the ground up as a focused writing tool - no account, no cloud, no telemetry, no subscription. Your notes stay in plain .md and .txt files on your iPad, readable by any editor on any platform, today and in ten years. CORE EDITING - Live preview - Markdown symbols fade out after the cursor leaves the line. - Rich syntax styling - real big headings, real bold, real monospace for code. - Light and Dark themes that follow iPad system appearance. - Multi-encoding - auto-detects UTF-8, UTF-16, GBK, Big5. - Tabs with dirty indicators. - File tree sidebar, outline view, and global search. MARKDOWN POWER - KaTeX math - inline and block math render instantly. - Mermaid diagrams - flowcharts, sequence diagrams, Gantt charts. - Task lists with clickable checkboxes. - Footnotes, YAML front-matter, text highlighting. - Syntax highlighting for 13 plus languages. - Synced split-pane scroll. - Tap an image or Mermaid diagram to open a pinch-zoomable overlay. BUILT FOR IPAD - 44 pt touch targets across toolbar, outline, and file tree. - Larger default font sizes tuned for iPad screen distance. - Split-view and multitasking friendly. - Works with hardware keyboards. - Portrait and landscape, every orientation. WRITER TOOLS - Focus mode - non-current paragraphs dim for deep work. - Typewriter mode. - Session restore - auto-saves so you never lose a line. - Chinese power tools - simplified/traditional conversion, pinyin, CJK word counts. - Spell check. - Custom CSS. EXPORT - HTML (newsletter quality) - PDF with KaTeX and Mermaid baked in - Word (.docx) with tables preserved - Copy as HTML, plain text, or Markdown PRIVACY FIRST SoloMD collects no personal data. No account. No analytics. No ads. No tracking. All your notes live locally in files you own. SoloMD is open source (MIT). Source: github.com/zhitongblog/solomd
Screenshots
Verdict
The clearest difference is price: SoloMD at Free against Arduino Bluetooth Kit's $4.99. SoloMD also leads on update cadence (weekly vs every 10 months). Arduino Bluetooth Kit's advantage is rating (2.4 vs 1.0) and chart position (#174 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SoloMD is free to download; Arduino Bluetooth Kit costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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 weekly. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.
| Parameter | Arduino Bluetooth Kit | SoloMD |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 2.4 (7 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 10 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #174 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Rabi Alhetawi | 向东 李 |
Customer experience
Arduino Bluetooth Kit
SoloMD
In-app purchases
Arduino Bluetooth Kit
No in-app purchases
SoloMD
No in-app purchases
Questions
Is Arduino Bluetooth Kit free?
Is SoloMD free?
Which has better reviews, Arduino Bluetooth Kit or SoloMD?
Do Arduino Bluetooth Kit or SoloMD have ads?
Which is updated more often, Arduino Bluetooth Kit or SoloMD?
Other comparisons
