Huh?
Fortunately, the standard PocketLab still works and does what I need.

This app pairs with a PocketLab sensor to measure motion data like speed, velocity, and acceleration. It's designed for students, educators, and makers to explore physics concepts through hands-on experiments.
0.2.1
October 1, 2017
This app has been updated by Apple to display the Apple Watch app icon. - Bug Fix
MoreVelocityLab is an application designed to work with the PocketLab sensor. It allows users to measure and record data related to the speed, velocity, acceleration, and position of moving objects, bringing science and engineering concepts to life.
VelocityLab is available for iPhone, iPad, and iPod devices, making it accessible for a wide range of Apple users interested in educational applications.
VelocityLab facilitates hands-on learning for STEM subjects by enabling users to conduct science experiments. It's particularly useful for exploring concepts like momentum, force, impulse, collisions, and acceleration in a practical way.
Yes, VelocityLab is available for free. However, it requires a PocketLab sensor to function, which must be ordered separately from the developer's website.
VelocityLab has an age rating of 4+, indicating it is suitable for children and adults interested in educational science applications.
The latest version of VelocityLab is 0.2.1, which was released on October 1, 2017. While updates have not been frequent recently, the app is designed to work with the PocketLab sensor for ongoing educational use.
No, VelocityLab does not contain advertisements. As a free application, it focuses on providing an uninterrupted educational experience for users.
You can conduct a variety of physics experiments, including those involving momentum, force, impulse, collisions, and acceleration. By attaching the PocketLab sensor to moving objects, you can collect data to analyze these phenomena.