Q vs Bluetooth V2.1 SPP Setup
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Q
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The Q-Transfer is able to send/receive data to/from NX1 @ ~8Kbps speed via NFC protocol, which is not practical to transfer bulky data while fairly convenient to exchange small chunk of data. Unlike a standard NFC tag, which is unpowered, the NX1 NFC tag function requires power to operate on exchanging data with the iDevice. When the close proximity is met between iDevice & NFC tag, the Q-Transfer app is invoked automatically for Read / Write / Recorder. Practical usage scenarios are listed below: Read: User manual provided @ iDevice upon product ID detection while tapping on NFC tag antenna @ NX1. Read: Game statistics read out for display @ iDevice. Write: Content replacement by writing new data, like LED flash pattern, sound, and even program codes onto NX1. Recorder: Record voice memo @ iDevice, compressed, and transferred to NX1 for playback. During data transfer period, music prompts are provided to indicate start / transfer-in-progress / end (complete or incomplete).
Bluetooth V2.1 SPP Setup
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The iOS portable devices will connect with the Bluetooth Low Energy (BLE) to serial port converter devices and exchange data with them bi-directional. The serial port includes RS-232 or RS-422 RS-485 interfaces. The user will test the APP with the SCADA, Robot, UAV, PLC, CNC or etc. with the BLE to serial port devices. The APP will be customized to meet the specific applications.
Screenshots
Verdict
The clearest difference is update cadence: Bluetooth V2.1 SPP Setup at every 2 weeks against Q's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Q ships an update every 10 months, Bluetooth V2.1 SPP Setup every 2 weeks. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.
| Parameter | Q | Bluetooth V2.1 SPP Setup |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 months | Every 2 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod β better |
| Requires iOS | 14.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 2 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Anson Yeh | FUH CHERNG SHEU |
In-app purchases
Q
No in-app purchases
Bluetooth V2.1 SPP Setup
No in-app purchases
Questions
Is Q free?
Is Bluetooth V2.1 SPP Setup free?
Do Q or Bluetooth V2.1 SPP Setup have ads?
Which is updated more often, Q or Bluetooth V2.1 SPP Setup?
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