Don’t not visible
The font doesn’t seem to show up on the test page as to how many bytes are being TX or RX using data pump
Mr
This is an excellent App and the developer must be some sort of genius… err probably!

This application enables developers to test and evaluate Bluetooth low energy modules from u-blox. It provides a platform for understanding the capabilities of these modules.
2.9.1
November 28, 2020
* Fixed a crash noticeable during Bluetooth Low Energy Bonding * Changed display name and various texts in app from BT and BLE to Bluetooth and Bluetooth Low Energy
Moreu-blox BLE is a utility app designed for developers to evaluate and test the stand-alone Bluetooth low energy modules offered by u-blox. It helps assess the capabilities of these specific hardware modules.
Yes, u-blox BLE is available for free. There are no costs associated with downloading or using the application, and it does not feature in-app purchases.
u-blox BLE is supported on iPhone and iPod devices. It is designed to run on Apple's mobile operating system.
The latest version of u-blox BLE is 2.9.1, which was last updated on November 28, 2020. While not frequently updated, it provides stable functionality for its intended purpose.
u-blox BLE has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.
No, u-blox BLE does not contain advertisements. As a free utility app for developers, it provides an ad-free experience.
You can learn more about the u-blox Bluetooth low energy modules evaluated by this app at www.u-blox.com. This website provides comprehensive details on their products and solutions.