Hi,
Built a small personal project for tracking cameras from your phone.
It allows you to building 3D camera tracking data and save it to .chan file.
Tracking is not accurate enough to use as a first-place camera but for camera shake - it should be enough.
Example: https://www.youtube.com/watch?v=65Q1MwN4jQ4 AppStore: https://apps.apple.com/nz/app/id1492609399
I hope it will be useful for somebody else also 