BLE UART vs 39Tools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLE UART
This tool facilitates iOS program development by connecting to low-power Bluetooth devices. It allows users to read data from serial devices via Bluetooth and send data to the serial port for debugging purposes.
- Connects to low-power Bluetooth devices
- Reads data from RXD serial port
- Sends data to TXD serial port
- Facilitates iOS program development
- Debugging tool for serial devices
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During iOS program development, you may need to read and write serial devices. This tool connects to low-power Bluetooth devices (BT24, etc.) through the low-power Bluetooth interface on iPhone and iPad, displays the data received by RXD, and sends TXD data to the serial port, thus achieving the goal of debugging the device.
39Tools
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39Tools is a application that integrates SSH,MYSQL,TCP,UDP,MQTT,BLE,Video and other debugging tools.
Screenshots
Verdict
The clearest difference is update cadence: 39Tools at every 9 months against BLE UART's every 23 months. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BLE UART ships an update every 23 months, 39Tools every 9 months. The most recent releases landed on September 7, 2026 and September 10, 2026 respectively.
| Parameter | BLE UART | 39Tools |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 23 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 6 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | 韩 明洁 | 策 王 |
In-app purchases
BLE UART
No in-app purchases
39Tools
No in-app purchases
