Comparison

XT UART vs Bluetooth V2.1 SPP Setup

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

XT UART

Xuntong UART Module App

Free

🔧 Utilities

No ratingsView app →

Bluetooth V2.1 SPP Setup

Free

🔧 Utilities

No ratingsView app →

About

XT UART

Features

Read full description

The support module functions as a parameter configuration of the slave, data transmission, speed measurement, and the like; Support module as data transmission and speed measurement function from the host; Support encryption and decryption of transparent data; Support device signal filtering and name filtering;

About

Bluetooth V2.1 SPP Setup

Features

Read full description

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

XT UART4 screens

Bluetooth V2.1 SPP Setup3 screens

Verdict

The call

The clearest difference is update cadence: Bluetooth V2.1 SPP Setup at every 2 weeks against XT UART's every 4 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

XT UART ships an update every 4 months, Bluetooth V2.1 SPP Setup every 2 weeks. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 5 level

XT UART versus Bluetooth V2.1 SPP Setup: the parameters behind the verdict, then further details
Parameter	XT UART	Bluetooth V2.1 SPP Setup
Price	Free	Free
Update frequency	Every 4 months	Every 2 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	13.0	13.0
Further details — not scored
Size	6 MB	18 MB
Age rating	4+	4+
Developer	Shenzhen Lanke Xuntong Technology Co., Ltd.	FUH CHERNG SHEU

In-app purchases

None

XT UART

No in-app purchases

None

Bluetooth V2.1 SPP Setup

No in-app purchases

Questions

Is XT UART free?

XT UART is free to download, with no in-app purchases.

Is Bluetooth V2.1 SPP Setup free?

Bluetooth V2.1 SPP Setup is free to download, with no in-app purchases.

Do XT UART or Bluetooth V2.1 SPP Setup have ads?

Neither XT UART nor Bluetooth V2.1 SPP Setup shows ads.

Which is updated more often, XT UART or Bluetooth V2.1 SPP Setup?

XT UART ships an update every 4 months, and Bluetooth V2.1 SPP Setup every 2 weeks. Most recently, XT UART was updated on September 12, 2026 and Bluetooth V2.1 SPP Setup on September 18, 2026.