Panorama viewing app

What is the smartest/easiest way to create an iOS bubble panorama viewing app? With a little text for certain orientations and integrated mp3’s. Sensor fusion and/or touch controlled.
Complete beginner with game engines, know Python…
Any help and advice are much welcome, where to start, best way… Thanks:)
Short clip of iVisit3D, app I need ‘cloned’.
https://www.youtube.com/watch?v=wui1rDEwy3Q