This page is an entry in the Key.
As lenses, sensors, and processors become ever more advanced, smartphone manufacturers increasingly incorporate two or more lenses of different focal lengths into the cameras on their devices (lenses that can be used in different ways and in different combinations, for a variety of purposes).
This website (including the Trust Checklist) was written to accommodate the increasing use of multiple-lens devices.
All of the exposure-combining aspects of TCQ account for combining not only successive exposures (TCQ-qualified which can be made with any camera)
. . . but also for combining simultaneous exposures (which can only be made with multiple-lens devices, as Q3 prohibits the use of multiple devices or cameras).