BlueHHT vs Embedded Slave
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BlueHHT
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BlueHHT is a virtual hand held terminal (HHT) for use with GSI's (Gauging Systems Inc.) tank gauging transmitters. It is able to configure and monitor GSI's APTB2, APTB3, and APTB3.6 transmitter cards via a wireless UART device. BlueHHT is not a general purpose hand held terminal emulator. It only supports the specific GSI devices described here. If you need a general purpose hand held terminal emulator, please refer to the BlueQTerm app.
Embedded Slave
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由凯扬电子推出的服务全球汽车锁匠的高效 App，可以通过蓝牙连接蓝牙（串口）子机，从而实现汽车智能卡生成、智能感应信号强度调整、智能卡信息读取等等功能。
Screenshots
Verdict
The clearest difference is update cadence: Embedded Slave at fortnightly against BlueHHT's every 12 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.
BlueHHT ships an update every 12 months, Embedded Slave fortnightly. The most recent releases landed on September 15, 2026 and September 17, 2026 respectively.
| Parameter | BlueHHT | Embedded Slave |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 15 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Dohmann Engineering Services | Wuxi Kaiyang Electronic Technology Co., Ltd. |
In-app purchases
BlueHHT
No in-app purchases
Embedded Slave
No in-app purchases
Questions
Is BlueHHT free?
Is Embedded Slave free?
Do BlueHHT or Embedded Slave have ads?
Which is updated more often, BlueHHT or Embedded Slave?
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